#1 Accurate Litecoin Mining Calculator (2020 updated)

QuarkCoin Cryptocurrency

Quark is a decentralized digital monetary system. It facilitates sending Quarks to Friends, Family Members Online Payments free of charges and charge-backs. Military Grade Encryption. No Bank or Government Control. Quark coins are based on the original idea of Bitcoin but improved, more secure, faster transaction times and zero fees. With improvements to design and security. There is also a greater coin supply with higher block rewards for miners. Quark is fully Open Source.
[link]

Gridcoin 5.0.0.0-Mandatory "Fern" Release

https://github.com/gridcoin-community/Gridcoin-Research/releases/tag/5.0.0.0
Finally! After over ten months of development and testing, "Fern" has arrived! This is a whopper. 240 pull requests merged. Essentially a complete rewrite that was started with the scraper (the "neural net" rewrite) in "Denise" has now been completed. Practically the ENTIRE Gridcoin specific codebase resting on top of the vanilla Bitcoin/Peercoin/Blackcoin vanilla PoS code has been rewritten. This removes the team requirement at last (see below), although there are many other important improvements besides that.
Fern was a monumental undertaking. We had to encode all of the old rules active for the v10 block protocol in new code and ensure that the new code was 100% compatible. This had to be done in such a way as to clear out all of the old spaghetti and ring-fence it with tightly controlled class implementations. We then wrote an entirely new, simplified ruleset for research rewards and reengineered contracts (which includes beacon management, polls, and voting) using properly classed code. The fundamentals of Gridcoin with this release are now on a very sound and maintainable footing, and the developers believe the codebase as updated here will serve as the fundamental basis for Gridcoin's future roadmap.
We have been testing this for MONTHS on testnet in various stages. The v10 (legacy) compatibility code has been running on testnet continuously as it was developed to ensure compatibility with existing nodes. During the last few months, we have done two private testnet forks and then the full public testnet testing for v11 code (the new protocol which is what Fern implements). The developers have also been running non-staking "sentinel" nodes on mainnet with this code to verify that the consensus rules are problem-free for the legacy compatibility code on the broader mainnet. We believe this amount of testing is going to result in a smooth rollout.
Given the amount of changes in Fern, I am presenting TWO changelogs below. One is high level, which summarizes the most significant changes in the protocol. The second changelog is the detailed one in the usual format, and gives you an inkling of the size of this release.

Highlights

Protocol

Note that the protocol changes will not become active until we cross the hard-fork transition height to v11, which has been set at 2053000. Given current average block spacing, this should happen around October 4, about one month from now.
Note that to get all of the beacons in the network on the new protocol, we are requiring ALL beacons to be validated. A two week (14 day) grace period is provided by the code, starting at the time of the transition height, for people currently holding a beacon to validate the beacon and prevent it from expiring. That means that EVERY CRUNCHER must advertise and validate their beacon AFTER the v11 transition (around Oct 4th) and BEFORE October 18th (or more precisely, 14 days from the actual date of the v11 transition). If you do not advertise and validate your beacon by this time, your beacon will expire and you will stop earning research rewards until you advertise and validate a new beacon. This process has been made much easier by a brand new beacon "wizard" that helps manage beacon advertisements and renewals. Once a beacon has been validated and is a v11 protocol beacon, the normal 180 day expiration rules apply. Note, however, that the 180 day expiration on research rewards has been removed with the Fern update. This means that while your beacon might expire after 180 days, your earned research rewards will be retained and can be claimed by advertising a beacon with the same CPID and going through the validation process again. In other words, you do not lose any earned research rewards if you do not stake a block within 180 days and keep your beacon up-to-date.
The transition height is also when the team requirement will be relaxed for the network.

GUI

Besides the beacon wizard, there are a number of improvements to the GUI, including new UI transaction types (and icons) for staking the superblock, sidestake sends, beacon advertisement, voting, poll creation, and transactions with a message. The main screen has been revamped with a better summary section, and better status icons. Several changes under the hood have improved GUI performance. And finally, the diagnostics have been revamped.

Blockchain

The wallet sync speed has been DRASTICALLY improved. A decent machine with a good network connection should be able to sync the entire mainnet blockchain in less than 4 hours. A fast machine with a really fast network connection and a good SSD can do it in about 2.5 hours. One of our goals was to reduce or eliminate the reliance on snapshots for mainnet, and I think we have accomplished that goal with the new sync speed. We have also streamlined the in-memory structures for the blockchain which shaves some memory use.
There are so many goodies here it is hard to summarize them all.
I would like to thank all of the contributors to this release, but especially thank @cyrossignol, whose incredible contributions formed the backbone of this release. I would also like to pay special thanks to @barton2526, @caraka, and @Quezacoatl1, who tirelessly helped during the testing and polishing phase on testnet with testing and repeated builds for all architectures.
The developers are proud to present this release to the community and we believe this represents the starting point for a true renaissance for Gridcoin!

Summary Changelog

Accrual

Changed

Most significantly, nodes calculate research rewards directly from the magnitudes in EACH superblock between stakes instead of using a two- or three- point average based on a CPID's current magnitude and the magnitude for the CPID when it last staked. For those long-timers in the community, this has been referred to as "Superblock Windows," and was first done in proof-of-concept form by @denravonska.

Removed

Beacons

Added

Changed

Removed

Unaltered

As a reminder:

Superblocks

Added

Changed

Removed

Voting

Added

Changed

Removed

Detailed Changelog

[5.0.0.0] 2020-09-03, mandatory, "Fern"

Added

Changed

Removed

Fixed

submitted by jamescowens to gridcoin [link] [comments]

An In-Depth Guide to: How do I Fix my Ledger Nano’s Stuck Ethereum Transaction?!?!?! (It’s Been Stuck for Weeks and NOTHING Traditional has Worked!!!!) As Well as: How Do I Choose My Nonce??? I’ve Tried MetaMask, MEW/MyEtherWallet, and Others, but Nothing is Working Correctly!!! I’m Dying by Stress!

So, if you were like me 1-2 months ago, you’ve probably already gone through 2,or 3, ...or 40 articles and guides that probably say something like:
“YeP, eVeRy EtHeReUm UsEr WiLl EvEnTuAlLy HaVe ThE LoW-gAs ExPeRiEnCe, YoU’rE nOt AlOnE! DoN’t FrEaK OuT tHoUgH; ThErE iS a WaY tO fIx It!”
Chances are, every time you read another useless article, you want to kill the nearest inanimate object, even though it was never alive in the first place. Nonetheless, you’re gonna kill it as much as it can be killed, holding nothing back; or, you’re just plotting to and slowly getting closer to executing the plan (and the object) every time you are insulted once again.
However, if you have the ability to download software (MyCryptoWallet) on a PC, it should be safe to relax now. I think you’ve finally found some good news, because I am 99.99...% sure this will work for the issue that so many people are having at this time, around the end of the month of May, year 2020.
More and more people are likely to be having this issue soon, since Ethereum's gas prices have been insanely high lately as well as having 300% price changes in a matter of minutes; Etherscan’s Gas tracker is nearly uselessly-inaccurate at this time. I've heard that there's a congestion attack; that was said a week ago, and it appears to be ongoing... (I can't think of any other suspect besides Justin Sun to blame it on... it must be incredibly expensive to overload the blockchain for this long... I may be wrong though...)
 
Let’s begin
For myself, I was trying to send an ERC20 token when this dreadful issue attacked. Specifically, the token was either BSOV or GRT; I sent them 1 after the other and the first succeeded, and the second one took over a week.
(They’re both great tokens in my opinion and deserve much more attention than they’ve been getting. BSOV is nearing its 1 year anniversary as I write this, and GRT is still in its 90 day community-development progress test, so of course I'm gonna take this opportunity to "shill" them; they are great tokens with great communities).
I was able to finally fix it, after a week of mental agony (also the txn finally processed 1-2 hours before I found the solution, robbing me of the gratitude of fixing it myself... (╯‵□′)╯︵┻━┻ ...but now I guess I can hopefully save some of you the headaches that I endured... ) I’m providing the ability to do the same, in a step by step guide.
Why did I go through all of this trouble? I'd fault the fact that I have ADHD and autism, which in my case can multiply each other’s intensity and cause me to “hyper-focus” on things, much much more than most with the same qualities, intentionally or not. Adderall is supposed to give me a bit of control over it, but except for in a very-generalized way, it’s still 90% up to chance and my default-capabilities to allow me control over my attention with self-willpower. But also Karma and Moons pls... ʘ‿ʘ
 
  1. In MyCrypto, (I'm using the Windows 10 app, version 1.7.10) you will open to a screen that says "How would you like to access your wallet?". Choose Ledger, of course. (Unless your here for some non-ledger issue? Idk why you would be but ok.)
  2. On the next screen (having your nano already plugged in, unlocked, and opened into the Ethereum app) click "Connect to Ledger Wallet"
  3. A screen overlay should appear, titled: "Select an Address". Here is where it may get confusing for some users. Refer to "AAA" below to know how to find your account. (Geez, sorry lol that was a huge amount of info for a reddit reply; I might've over-elaborated a little bit too much. but hey it's valuable information nonetheless!)
  4. After escaping the "AAA" section, you'll have accessed your account with MyCrypto. Awesome! To find your ERC20 tokens, (slight evil-laughter is heard from an unidentifiable origin somewhere in the back of your mind) go to "AAB".
  5. (You may have decided to find the token(s) on your own, rather than daring to submit to my help again; if so, you may pity those who chose the other path... ~~( ̄▽ ̄)~~) Now, once you've added your token, you should revert your attention to the account's transfer fill-out form!
  6. I'll combine the steps you probably understood on your own, already. Put in the address that your stuck transaction is still trying to send currency to. If an ERC20 token is involved, use the drop-down menu to change "ETH" to the token in trouble. Input your amount into the box labeled... wait for it... "Amount". Click on "+Advanced".
  7. Refer to Etherscan.com for the data you will need. Find the page for your "transaction(txn) hash/address" from the transaction history on the wallet/Ethereum-manager you used to send from. If that is unavailable, put your public address that your txn was sent from into the search tool and go to its info page; you should be able to find the pending txn there. Look to open the "more details" option to find the transaction's "Nonce" number.
  8. Put the nonce in the "Nonce" box on MyCrypto; you will contest the pending txn with a new txn that offers larger gas fees, by using the same nonce. If (but most likely "When") the new transaction is processed first, for being more miner-beneficial, the nonce will then be completed, and the old transaction will be dropped because it requests an invalid, now-outdated nonce. Your account will soon be usable!
  9. Go to the Gas Tracker, and it may or may not provide an informative reading. Choose whatever amount you think is best, but choose wisely; if you're too stingy it may get stuck again, and you'd need to pay another txn's gas to attempt another txn-fix.
  10. At the time I write this, I'd recommend 50-100 gwei; to repeat myself, gas requirements are insane right now. To be safe, make the gas limit a little higher than MCW's automatic calculation, you may need to undo the check-mark for "Automatically Calculate Gas Limit".
  11. Press "Send Transaction"!!!
  12. You will need to validate the action through your nano. It will have you validate three different things if you are moving an ERC20 Token. It's a good idea to verify accuracy, as always.
 
Well, I hope this worked for you! If not, you can let me know in a reply and I'll try to figure it out with you. I like making these in-depth educational posts, so if you appreciate it please let me know; I'll probably make more posts like this in the future!
( Surely this is at least far better than Ledger's "Support" article where they basically just tell you "Yeah, we haven't bothered to make a way to manually select nonces. I guess we might try to make that available for Bitcoin accounts at some point in the future; who knows? lol"... that's not infuriating at all, right?)
 
AAA:
Before I tell you how to find your address, I will first make it clear, within the italicized text, exactly which address you are looking for, if you are not already sure:
You may also skip the text written in italics if your issue does not include an ERC20 token, if you wish.
Ledger Live can confuse some users with its interface. On LL, to manage an ERC20 token, you first must go to your Ethereum account and add the token. When you then click on the added token under "Tokens" below the graph chart for your account's ETH amount over time, the screen will then open a new screen, that looks just the same, except focused on the specific ERC20 token. To confuse users further, there is then an option to "Star account", which then add the ETH icon with the ERC20 token's first letter or symbol overlapping, onto the easy access sidebar, as if it was another account of similar independency to the ETH account it was added to.
This improperly displays the two "accounts" relation to each other.
Your ERC20 holdings (at least for any and all ERC20 that I know of) are "held" in the exact-same address as the Ethereum address it was added to, which also "holds" any Ether you've added to it. You send both Ether (ETH) and any ERC20 Tokens to and from only Ethereum addresses of equivalent capabilities, in both qualities and quantities. In all basic terms and uses, they are the same.
So, to know what the problematic account's address is, find the address of the Ethereum account it was added to in Ledger Live.
Now, to find your address on MyCrypto, the most reliable way to find it, that I am aware of, is this:
Open Ledger Live. Go to the screen of your Ethereum address (again, this is the one that you added your ERC20 token, if applicable. If you're not dealing with an ERC20 token, you may ignore everything I've put in Italics). Click on "Edit account"; this is the icon next to the star that may look like a hex-wrench tool. On the new screen-overlay, you will see "> ADVANCED LOGS". Click on the ">" and it will point down while revealing a drop-down with some data that you may or may not recognize/understand. Likely to be found indented and in the middle-ish area, you will see this line, or something hopefully similar:
"freshAddressPath": "44'/60'/X'/0/0",
The "X" will probably be the only thing that changes, and the actual data will have a number in its place; it will not be a letter. Let's now put that line to use in MyCrypto:
Take the 44'/60'/X'/0/0 , and make sure you DO NOT copy the quotation marks, or that comma at the end either.
You can do this before or after copying and/or pasting, but drop the second "/0" at the end; it was not necessary in my case, I expect that you won't need it either, and will probably just make MyCrypto see it as an invalid input.
Okay, now go back to the "Select an Address" screen-overlay in MyCrypto.
Next to "Addresses", click on the box on the right, and you should be shown a list of options to select from in a drop-down menu.
Scroll all the way down, and you should find the "Custom" option at the very bottom. Select it.
A new box will appear; probably directly to the right of the now-shortened box that now displays the "Custom" option that you just selected. This box will offer an interface for typed input. ...yep... once again, believe it or not, you should click it.
Type " m/ ", no spaces before or after.
Type in or paste the data we retrieved from ledger live.
The box should now hold this:
m/44'/60'/X'/0
Again, X should be a number. In fact, that number is probably equal to the number of Ethereum (not including any ERC20 wannabe) accounts that you've made on Ledger Live before making the one we're working on right now! (1st Eth. Acc. would have: X = 0, 2nd: X = 1, 3rd: X = 2, ...)
Make sure you've included every apostrophe ( ' ), and solidus ( / ); there is NO APOSTROPHE for the "m" at the start and the "/0" at the end!
If you press the enter key or click on the check-mark to the right of where you typed, the appropriate addresses will be generated, and the address you created through Ledger Live should be the first one on the list!
Select your address and press "Unlock", and you are now accessing your account through the MyCrypto app's interface!
 
AAB:
In order to access your ERC20 token, you will need to add them first.
You may have to scroll down, but on the right-side of your unlocked account screen, you'll see a box with "Token Balances" as its header.
Click "Scan for tokens". This may take a short bit of time, and when it's done it may or may not display your ERC20 token. If it worked, you can head on back to the main part.
If you got the result I did, it won't display your token, or, if our result was exactly the same, it won't display any at all. However, you should now have the "Add Custom Token" option available, so see where that takes you.
You should discover four boxes, specified in order (Address/ Decimals / Token_Symbol / Balance). You may only need to fill in the "Address" box, but if you need to fill others, you'll find those with the token's address; here's 2 ways to find it, if you don't already know.
Method I:
Since you've probably already been managing your token with Ledger Live, you can go to the LL screen of your "account" for that token; Right next to the account's icon, and directly above the name, you'll see:
Contract: 0x??????...????????
Yes, go on; click it. You'll find the token's page on Etherscan; this was just a shortcut to the same place that both of the two previously referenced methods lead to. Skip to method... III?
Method II:
Go to Etherscan.com, or a similar Ethereum-blockchain-monitoring website, if you have a different preference. Search for the name of your token, and you should be able to see it as a search result. Activate your search manually of by selecting search option. Continue on with Method III.
Method III (Iⅈ what makes you think there was a third method? I said 2!):
At this point, you should find the "contract address" somewhere on the screen. This is the identity of the creature that breathes life into the token, allowing it to exist within the world of Ethereum. Steal it, and tell MyCrypto that you've left some of "your" tokens in the address of your ledger's Ethereum account. MyCrypto will trust and believe you without any concern or doubt, just by putting "your" contract address in the box for "Address"; it's almost too easy!
Well whaddya know, this one isn't actually too long! Don't tell anyone who may have taken a little longer whilst finding out how to do it themselves, though. There's value in trying to do something on your own, at least at first, so I'll let them think they made the right choice (¬‿¬). But take this star for humbling yourself enough to seek further help when you need it, since that is a very important life skill as well!
(o゜▽゜)o☆
Now, back to the useful stuff at the top...
 
EDIT: A comment below made me realize that this info should be added too. Here is my reply to the comment saying I could just use MetaMask. I said in the title that this guide is for questions where MEW and MetaMask aren’t working, but I guess it’s easy to miss. I used my u/caddark account to respond:
(Using this account because u/caddarkcrypto doesn’t meet the karma/age standards to comment; the post had to be manually approved.)
I guess I didn’t make it entirely clear; sorry:
The target audience for this guide is anyone with a stuck Ethereum transaction that was initiated through Ledger Live AND are experiencing the same difficulties I had encountered while trying to fix this issue for myself.
This wasn’t any regular stuck Ethereum transaction. Apparently before, there was an issue that made a Ledger Nano nearly impossible to connect to MetaMask (which is also Brave Browser’s integrated “crypto wallet” for the desktop version) and/or MEW (also perhaps any other browser wallets made for chrome and/or brave) that I heard was supposed to be fixed in a recent update. It might’ve been mostly patched, idk, but during my experience, (in which I was using the latest version of Ledger Live that is available right now,) that issue still remained.
The really weird part was that it successfully connected to the browser wallets again after I fixed the stuck transaction. At first I thought that somehow the txn was what was bugging the connection. However, later, during no txn issues, I was again unable to connect.
Seeing the same connection error again later, I opened up the MCW app I downloaded the day before, and was going to just use that. While in the process of operating MCW, I suddenly had another idea to try for the browser wallet so I went back to that just to quickly test it.
The browser wallet worked perfectly...
I don’t know how, but I think that somehow, something in MCW’s software, makes the browser wallets work. They don’t work for me without having MCW opened in the background first.
EDIT 2: Markdown decided to stop working after I did the first edit... I might fix it tomorrow... how did that happen though??? What did I do?
EDIT 3: nvm, I'm just fixing it now; I won't get much sleep tonight I guess.
submitted by CaddarkCrypto to CryptoCurrency [link] [comments]

How Bitcoin Mining Works

When you hear about bitcoin “mining,” you envisage coins being dug out of the ground. But bitcoin isn’t physical, so why do we call it mining?
Similar to gold mining, bitcoins exist in the protocol’s design just as the gold exists underground, but they haven’t been brought out into the light yet, just as the gold hasn’t yet been dug up.
The bitcoin protocol stipulates that a maximum of 21 million bitcoins will exist at some point. What miners do is bring them out into the light, a few at a time. Once miners finish mining all these coins, there won’t be more coins rolling out unless the bitcoin protocol changes to allow for a larger supply. Miners get paid in transaction fees for creating blocks of validated transactions and including them in the blockchain.
To understand how bitcoin mining works, let’s backtrack a little bit and talk about nodes. A node is a powerful computer that runs the bitcoin software and fully validates transactions and blocks. Since the bitcoin network is decentralized these nodes are collectively responsible for confirming pending transactions.
Anyone can run a node—you just download the free bitcoin software. The drawback is that it consumes energy and storage space – the network at time of writing takes hundreds of gigabytes of data. Nodes spread bitcoin transactions around the network. One node will send information to a few nodes that it knows, who will relay the information to nodes that they know, etc. That way, the pending transaction ends up getting around the whole network pretty quickly.
Some nodes are mining nodes,usually referred to as miners. These chunk outstanding transactions into blocks and add them to the blockchain. How do they do this? By solving a complex mathematical puzzle that is part of the bitcoin program, and including the answer in the block.
The puzzle that needs solving is to find a number that, when combined with the data in the block and passed through a hash function (which converts input data of any size into output data of a fixed length, produces a result that is within a certain range.
For trivia lovers, this number is called a “nonce”, which is an abbreviation of “number used once.” In the blockchain, the nonce is an integer between 0 and 4,294,967,296.
How do they find this number? By guessing at random. The hash function makes it impossible to predict what the output will be. So, miners guess the mystery number and apply the hash function to the combination of that guessed number and the data in the block. The resulting hash starts with a certain number of zeroes. There’s no way of knowing which number will work, because two consecutive integers will give wildly varying results. What’s more, there may be several nonces that produce the desired result, or there may be none. In that case, the miners keep trying but with a different block configuration.
The difficulty of the calculation (the required number of zeros at the beginning of the hash string) is adjusted frequently, so that it takes on average about 10 minutes to process a block.
Why 10 minutes? That is the amount of time that the bitcoin developers think is necessary for a steady and diminishing flow of new coins until the maximum number of 21 million is reached (expected some time in 2140).
The first miner to get a resulting hash within the desired range announces its victory to the rest of the network. All the other miners immediately stop work on that block and start trying to figure out the mystery number for the next one. As a reward for its work, the victorious miner gets some new bitcoin.
At the time of writing, the reward is 6.25 bitcoins per block, which is worth around $56,000 in June 2020.
However, it’s not nearly as cushy a deal as it sounds. There are a lot of mining nodes competing for that reward, and the more computing power you have and the more guessing calculations you can perform, the luckier you are.
Also, the costs of being a mining node are considerable, not only because of the powerful hardware needed, but also because of the large amounts of electricity consumed by these processors.
And, the number of bitcoins awarded as a reward for solving the puzzle will decrease. It’s 6.25 now, but it halves every four years or so (the next one is expected in 2024). The value of bitcoin relative to cost of electricity and hardware could go up over the next few years to partially compensate for this reduction, but it’s not certain.
If you’ve made it this far, then congratulations! There is still so much more to explain about the system, but at least now you have an idea of the broad outline of the genius of the programming and the concept. For the first time we have a system that allows for convenient digital transfers in a decentralized, trust-free and tamper-proof way.
submitted by hackatoshi to u/hackatoshi [link] [comments]

Cryptocurrency Mining Today

Cryptocurrency Mining Today
Mining is one of the key concepts in the crypto world. Everyone who comes into contact with this sphere somehow wonders about the mining of coins. How profitable is mining in 2020, and what are the current trends?
by StealthEX
Crypto mining is a process during which a computer solves mathematical problems, resulting in the release of new blocks of information. This gives its owners a certain amount of coins, which is deposited in the total pot and registered in the public “ledger”, so-called blockchain. Machines in the network are also checking transactions with existing coins, adding this information to the blockchain as well.
As for the issue itself, the most well-known algorithm of mining is Proof-of-Work (PoW), used in the networks of Bitcoin, Litecoin, Ethereum and many others.
During the mining process, the latest transactions are verified and compiled into blocks. It is usually a series of calculations with an iteration of parameters to find a hash with the specified properties. The node which first solves this problem receives a reward. This approach was specifically designed to encourage those who provide the computing power of their mining machines to maintain the network and mine new coins.
It is usually no need for a newcomer to know and understand all the complicated details of the mining process, just how much they can earn with certain equipment and electricity costs.
Everything is designed in such a way that the complexity of calculations is steadily increasing, which then requires a constant increase in the computing power of the network. In 2009-2010, for mining bitcoin, miners only had to download and run the software on their personal computers, but very soon the network became so complicated that even with best PCs with a powerful processor, mining became unprofitable. That’s why miners started to use more effective video cards (graphics processing units or GPUs) and join them in so-called “farms”.
In most systems, the number of coins is determined in advance. Also, many networks are gradually reducing rewards for miners. Such emission restrictions were built into the algorithm to prevent inflation.
Thus, the cost of mining for smaller participants no longer pays off, which makes them turn off their hardware or switch to another coin where they can still make their profit.
In particular, on the evening of May 11, 2020, a halving took place in the bitcoin network, the reward for mining was halved, from 12.5 to 6.25 BTC. In June, the revenue of bitcoin miners decreased by 23%, to the lowest since March 2019.
However, in mid-June, the difficulty of bitcoin mining showed a record growth over the past 2.5 years. Mining the first cryptocurrency has become 15% more difficult. Although, by the beginning of July, the complexity had stabilized. The growing difficulty of mining the first cryptocurrency indicates that new miners have joined its network. Previously, some of them turned off the equipment, as it became less profitable to mine the coin due to a decrease in its cost and halving.
Now the absolute majority of new coins are generated by industrial mining. This is done by large data centers equipped with specialized computers based on the ASIC architecture. ASICs are integrated circuits that were initially optimized for a specific task, namely the mining of cryptocurrencies. They are much more productive than CPUs and video cards, and at the same time consume much less electricity. ASIC computers are the main type of equipment for the industrial production of crypto.
So now, after the halving, BTC coin mining has become even less profitable. For beginners, mining the first cryptocurrency is unlikely to be suitable. It is more often earned by large companies that have all the necessary equipment, access to cheap rental conditions, electricity and maintenance.
Hence newbies are better off starting with mining altcoins. It is even more profitable to work in a pool, that is, together with other miners. This can help to place farms in one place and negotiate a favourable price for electricity, so you can get a small but stable income dux to the total capacity of the pool.
Therefore, it has become much more difficult for regular users who have only non-specialized equipment at their disposal to generate virtual money. However, GPU developers have significantly increased the performance of their devices in recent years, so mining on a video card is still common.
Another important event that changes the situation in the mining sphere will be the hardfork of the Ethereum network with the turn to the Proof-of-Stake algorithm. For now, Ethereum is the most popular altcoin for GPU mining, but Ethereum 2.0 will not require using such powerful equipment, so then it switches to PoS, GPU owners will have to look for alternative coins to mine.
At the moment the most popular altcoins for mining on GPUs are Ethereum (ETH), Ethereum Classic (ETC), Grin (GRIN), Zcoin (XZC), Dogecoin and Ravencoin (RVN). There are actually a lot of mining programs that automatically determine which coin is more profitable to mine at the moment.
In the coming years, the market is waiting for a race of technologies. Manufacturers are investing in finding ways to increase hashing speed and reduce power consumption. Mining pools will play an increasing role. The market will also be affected by applications for mining cryptocurrencies on smartphones that require low computing power, such as Dash or Litecoin.
And remember StealthEX supports more than 250 coins and constantly updating the list, so you can easily swap your crypto haul to more popular altcoins. Our service does not require registration and allows you to remain anonymous. Why don’t you check it out? Just go to StealthEX and follow these easy steps:
✔ Choose the pair and the amount for your exchange. For example ETH to BTC.
✔ Press the “Start exchange” button.
✔ Provide the recipient address to which the coins will be transferred.
✔ Move your cryptocurrency for the exchange.
✔ Receive your coins.
Follow us on Medium, Twitter, and Reddit to get StealthEX.io updates and the latest news about the crypto world. For all requests message us via [email protected].
The views and opinions expressed here are solely those of the author. Every investment and trading move involves risk. You should conduct your own research when making a decision.
Original article was posted on https://stealthex.io/blog/2020/07/28/mining-today/
submitted by Stealthex_io to StealthEX [link] [comments]

BitOffer institute: Ethereum miners' daily earnings soared 60%, ETF earning over 85 times

BitOffer institute: Ethereum miners' daily earnings soared 60%, ETF earning over 85 times

https://preview.redd.it/95910ilvizd51.png?width=696&format=png&auto=webp&s=6681449d66d95faa67159454fe7faff49b4d7df8
On June 27, Ethereum miners earned about $1.85 per 100 (MH/s) per day. In the past month, especially in the last two weeks, the income rose by 60%, reaching a peak of $3.27 per 100 MH/s on July 25, before falling back to around $3.
Over the same period, the price of ETH has risen more than 40%, from $229 on June 27 to $327.99, which is a new high for 2020.
On July 22, the total market value of decentralized Financial DeFi passed $11.5 billion. The massive hype of DeFi caused a surge in trading volume in ETH, which, along with the surge in trading volume from ETH, pushed miners’ daily income to its highest level in two years.
Etherscan, a blockchain browser, shows that the entire computing power of the Ethereum blockchain, the world’s second-largest by market value, has been stable at around 190 petahash per second. Indeed, data from Bitinfocharts show that in the first quarter of this year, Ethereum’s daily mining revenue was below $2 per 100 MH/s before falling to $1 per 100 MH/s on March 12 after the cryptographic market collapsed. Ethereum’s daily mining revenues have tripled in recent months.
Currently, some of the most advanced ETH mining equipment, such as the core A10 Pro, which has a 500-megabit hash per second (MH/s) computing power and a power ratio of 1.9w/m, generates $13 per day at Ethereum’s current price and mining difficulty. Based on the miner’s profitability level, and A10 Pro Ethereum miner’s daily power consumption is about 1.1 dollars, and its daily net profit is nearly 12 dollars.
Even though bitcoin’s price topping $11,000 for the first time since September 2019, the difficulty of mining bitcoin remains at an all-time high. As a result, even the most efficient bitcoin miners, such as MicroBT’s WhatsMiner M30S ++ and Bitmaint’s AntMiner S19 Pro, generate $9 in daily income. Based on the current price of bitcoin and the difficulty of mining it, a more efficient Bitcoin miner (within 40w/T power ratio) generates about $6.50 in net profits per day. Ethereum miners earn about $13 a day, which is twice as Bitcoin miners.
Since the launch of DeFi, it has received a lot of attention from investment institutions and individual investors. Currently, DeFi Wallet has been downloaded more than 5,000 times, far more than any other type of DAPP, it is the number one DAPP developed based on Ethereum. According to the popularity and the current download speed, in the next few months, the downloading number will break through 6000 and bring a sufficient number of volumes for the ETH. Meanwhile, as the ETH 2.0 launch date approximation, these two advantages will boost the price of ETH, the income of the ETH miners will be at the appointed time with increased, which gradually widening the income gap with BTC miner.
It is the best time to invest in Ethereum.
However, buying BitOffer’s Ethereum ETF Ethereum is better than buying a future, in which profits start at a minimum of three times. Besides, it also includes an intelligent dynamic position reallocation mechanism and the calculation of fund compound interest with the returns of up to 17 times.
In the latest week, the Ethereum ETF (ETH3X) has jumped 160% from a peak of $6 to $16, according to data analysis from the BitOffer Exchange. With the launch of DeFi and ETH 2.0, once Ethereum rises more than fivefold over the next few months, the ETH3X could rise as much as 85 times.
If you buy Ethereum for $10,000, and ETH goes up fivefold, you can maximum make a fivefold profit, Which from $10,000 to $50,000. But buying ETH3X is a different story. Once Ethereum increases fivefold, you can make up to 85 times, which would be from $10,000 to $850,000, the 17 times than buying futures, more than over $800,000. Buying the Ethereum ETF would be a better deal.
submitted by Bitoffer_Official to BitOffer_Official [link] [comments]

In depth interview with Mr. Feng: MW is not only the commercial incentive layer of IPFS

Why did early bitcoin players play MW?Why is blockchain + distributed storage the only industry that can combine mining with practice?How can human beings do things beneficial to social storage while consuming a lot of resources?Special guest Mr. Feng: early believers in bitcoin, co-founder ofMirror World Network MW, to solve our doubts one by one!
Hello, I'm Mr.Feng. I started my business in 2012.I'm an early believer in bitcoin. After two years of silence, I returned to the industry with the help of a group of friends.During this period, a lot of research has been done on distributed storage, including IPFS. So this project is also about the field of distributed storage. I think blockchain + distributed storage is the only industry that can combine mining with practice. While human beings consume a lot of resources, it can also be a commercial storage network beneficial to society. MW is a mature landing project that applies IPFS technology to actual storage, and creates a feasible solution for the landing of blockchain industry.
1. I believe that after your self introduction, many audience friends are concerned about what mirror network is doing recently. Can you share it with audience friends?What achievements have mirror network made in these years?
MW is building an easy-to-use and available distributed storage network, which creates a new computing paradigm and collaboration mode of low-cost trust building in an untrusted competitive environment.We have three years of technical precipitation and have drawn on the experience of IPFS, Alibaba cloud OSS, stoij and other technologies at home and abroad. At present, the code base is close to 900000 lines, and it will also be open-source in the future. Before that, we have run a relatively stable internal test network, and many friends have participated in it.In the next three to four months, we will release our technical achievements, including practical cases, and leave a message for you.
2.What the difference between MW and filecoin?What is the core competitiveness of MW?
I believe you have known IPFS for a long time. Filecoin is the incentive layer of IPFS. To put it simply, it is the financing tool of IPFS. It was dazzling at that time.At the same time, storj and SIA did well.We also chose this way at that time. The original intention of MW is to do real distributed storage. I think MW different from filecoin in terms of starting point. The core competitiveness of MW is technology inclusiveness. We integrate decentralized storage protocol and centralized storage protocol to solve the game between decentralized storage protocol, regulatory layer and practicability.
3.Now, MW public chain has been able to apply IPFS technology to actual storage very mature, and it is the only one.what kind of difficulties did MW encounter and how did you solve them?
In January, we asked for opinions on a small scale in the industry. At that time, we fully demonstrated the storage function and blockchain information, which was unanimously recognized by everyone.Because the team is mainly technical members, the economic model should be the biggest difficulty. After extensive collection of opinions, we adjusted it no less than ten times. Finally, we chose the open and inclusive community governance scheme. There is no model, fair competition, and community motivation is our goal.
4.MW will open the test network on April 18,How should interested users participate in the test?Is there a reward for the test?
Yes, the public beta will be officially launched on April 18, 2020. It will be divided into three stages: pioneer, union and world. You can go to mw.run see the road map , there is a threshold at the earliest stage of the pioneer stage. We need to manually authenticate the added equipment to ensure the stability and robustness of the initial stage of the network, but there will be no block reward, only contribution reward provided by the foundation.After the network is stable, we will open up the block reward and enter the computing power contest period. There will be rewards in the whole public beta stage. You only need to send an email to: [email protected] to apply for joining.
5. Distributed storage mining has always been a concern of miners. What should be paid attention to when mining in MW test network?What are the requirements for mining machines?What factors will affect the mining revenue?
I like to share with you the consensus mechanism of MW. In order to make more storage devices join the MW ecosystem more fairly, and further increase the number of stable nodes in the network to improve the network dispersion, MW adopts DPoS consensus and POC consensus based on weight table.How to understand this? In fact, MW is a very inclusive project. Simply speaking, it is as simple as bitcoin mining through the competition for computing power!We have a set of strict weight calculation and distribution mechanism, which is equivalent to the law of the whole network. It will be announced in genesis block. At present, the size of storage space has the most direct impact on the income. In addition, we have a unique mining pool system, where everyone can establish a mining pool and participate in mining dividends together without having equipment.We don't have too many requirements for mining machines. At present, we only have requirements for network environment, and we need public IP.
6.In your opinion, what is the real "visual" IPFS storage system?How MW achieve "availability" and "ease of use" when building a distributed file storage network?
"Visualization" is actually very easy to understand, that is, it can be seen and felt.Now we have developed a complete visual storage path, and MW is a typical representative of visual storage.Here I highly recommend our internal measurement network that you experience. Like using a network disk, your files can be segmented, hashed and encrypted after uploading. Finally, they can be completely recovered and downloaded. We also made a short tutorial, which can be watched and understood by interested friends.In addition, our goal is to make the IPFS distributed storage system available to all ordinary people, rather than setting too high a threshold, which represents ease of use and availability.
If you want to participate in the internal test, you can contact us before April 18 to register. We will also provide 1000 coins for free.After the test network was officially launched on April 18, all data of the internal test will be reset.
7. IPFS commercial incentive layer, but also what value can MW provide us?What is the ultimate vision of the MW?
MW network can do the following:
a.establish an open distributed blockchain storage network, form a multi chain ecology with existing networks and public chains, and complete data and value transmission.
b.set up a component distributed storage network with idle storage resources in the enterprise and individuals, and deploy various public chains, storage networks and individual nodes.
c.build a global distributed cloud storage compatible with IPFS, public cloud storage and private cloud storage.
Secondly, we need to talk about our collective chain architecture. In the public chain part, MW is an open blockchain + distributed storage system, which mainly provides benefits for the miners and maintains the stability of the network. We will also make an alliance chain in China. MW will become an application network of small distributed data center, providing users with low cost, security and high private storage services can also be used to supervise and audit enterprises and governments in some specific fields or scenarios.
Finally, we can provide data backup, verification and query services for other public chain (open source chain) data.MW is an underlying system focusing on distributed storage.
8.Security has always been a key concern of people. In terms of data security, how does the mirror network ensure data security?
Data loss and privacy are the focus of data storage. I'm sure you have heard a lot of news, including customer information disclosure, downtime, server crash, selling customer privacy and so on. In fact, this is some of the problems that central storage will face. With the continuous growth of data and the improvement of people requirements for data security, the data storage mode is also generating iterations, and IPFS protocol is a very good solution to the privacy processing,On the basis of IPFS, MW also uses technologies such as file segmentation, multi backup, encryption, multi role, data correction and deletion to ensure the data security of users.One of the simplest understandings is that we will always copy three file fragments automatically in the network node to ensure the data security.
9.With the advent of 5g cloud computing era, people have new requirements for bandwidth and traffic. How is the layout of MW?How will distributed storage develop in the future?
We are full of expectations for 5g era, which is one of the reasons why we have only launched MW until now. The small distributed storage computing center close to users is more suitable for the needs of the future era. We will set up a demonstration data center in the public test network, and conduct commercial demonstration for the storage space provided by enterprises.
At the end of last year, I read a research report jointly issued. By 2023, the data storage volume will be twice that of 2019. At present, the industry is in a high-speed development stage, in which distributed storage will enter the mainstream storage market. We have planned a three-year development path, starting with cold data, such as archived data, infrequently called data, etc., public chain miner Hosting as a data center is the business model of our alliance chain. Compared with the traditional data center or cloud, we have a natural price advantage. We can even achieve 10% of the price of Tencent cloud and Alibaba cloud equivalent products. When 5g / 6G is mature, we will enter the mainstream storage market.
In the future, we also hope that global storage, open-source public chains, and enterprises and individuals with storage resources can join Mirror World Network to provide a solid infrastructure for future storage methods, and obtain appropriate rewards.
submitted by MirrorWorldNetwork to u/MirrorWorldNetwork [link] [comments]

Hey r/ZEC - Messari just completely overhauled its Zcash profile

The Messari team has been working like crazy to update our profiles for the top 100 crypto assets and went all out on a new Zcash profile. Take a look and let us know what you think!
https://messari.io/asset/zcash
The profile page includes an overview, history of the project, profiles for the Electric Coin Company and Zcash Foundation, roadmap, contributor profiles, advisors, investors, launch details, funding details, supply curve details, security and governance details and more.
https://messari.io/asset/zcash/profile
Here's an excerpt detailing some of the key technological components of Zcash
Zcash, the protocol, is a distributed, time-stamped ledger of unspent transaction output (UTXO) transfers stored in an append-only chain of 2MB data blocks. A network of mining and economic nodes maintains this blockchain by validating, propagating, and competing to include pending transactions (mempool) in new blocks. Economic nodes (aka "full nodes") receive transactions from other network participants, validate them against network consensus rules and double-spend vectors, and propagate the transactions to other full nodes that also validate and propagate. Valid transactions are sent to the network's mempool waiting for mining nodes to confirm them via inclusion in the next block.
Mining nodes work to empty the mempool usually in a highest-to-lowest fee order by picking transactions to include in the next block and racing against each other to generate a hash less than the target number set by Zcash's difficulty adjustment algorithm. Zcash uses a Proof-of-Work (PoW) consensus mechanism to establish the chain of blocks with the most accumulated “work” (a.k.a., energy spent on solved hashes) as the valid chain. Other network peers can cheaply verify the chain’s work
In order to have zero-knowledge privacy in Zcash, the function determining the validity of a transaction according to the network’s consensus rules must return the answer of whether the transaction is valid or not, without revealing any of the information it performed the calculations on. This is done by encoding some of the network’s consensus rules in zk-SNARKs (zero-knowledge succinct non-interactive arguments of knowledge). Zk-SNARKs are specific zero-knowledge proofs whereby one can prove possession of certain information, e.g. a secret key, without revealing that information, and without any interaction between the prover and verifier.
Zcash addresses are either private (z-addresses) or transparent (t-addresses). Z-addresses start with a “z,” and t-addresses start with a "t." The two Zcash address types are interoperable, and funds can be transferred between z-addresses and t-addresses. A Z-to-Z transaction appears on the public blockchain, so it is known to have occurred and that the fees were paid. But the addresses, transaction amount and the memo field are all encrypted and not publicly visible. Transactions between two transparent addresses (t-addresses) work just like Bitcoin: The sender, receiver and transaction value are publicly visible. The owner of an address may choose to disclose z-address and transaction details with trusted third parties using view keys and payment disclosure.
The News and Research tab aggregates the latest Zcash news: https://messari.io/asset/zcash/news
The Historical Data tab offers downloadable daily market data: https://messari.io/asset/zcash/historical
The exchange page keeps tabs on Zcash trading volumes at various exchanges while the metrics page tracks things like Market info, on-chain info, Github Activity, and historical ROI:
https://messari.io/asset/zcash/exchanges
https://messari.io/asset/zcash/metrics
submitted by messaricrypto to zec [link] [comments]

Gridcoin Mandatory Update 4.0.0.0 Released - CBR!

.
Well folks the day has finally come. Gridcoin's newest mandatory, 4.0.0.0, CBR is here.
Betsy is ready for showtime!
 
4.0.0.0 is a mandatory update for all users. This means you must update your wallet before the hard fork date or you will be left behind. The hard fork is set at block 1,420,000. This is approximately 20 days from now. We expect the hard fork to occur on either November 7th or 8th. Please update before then!
 
The biggest change in 4.0 is, of course our new block version, v10. This brings CBR (constant block rewards) to Gridcoin. Instead of earning 1.5% APR from Proof of Stake, every block will instead be worth a static 10 GRC. This change follows network consensus through three seperate polls with the aim to increase network difficulty, and by extension, increase the strength and security of the Gridcoin blockchain.
 
If you wish to see resources about how to optimize your staking for CBR, please see this excellent post by core developer @jamescowens.
 
Download the update from GitHub here.
 
Linux PPAs are now updated!
The Windows MSI can be downloaded here. Checksum.
Full changelog for the 4.0 release:
 
Added
Linux nodes can now stake superblocks using forwarded contracts, #1060 (@tomasbrod). 
Changed
Replace interest with constant block reward #1160 (@tomasbrod). Fork is set to trigger at block 1420000. Raise coinstake output count limit to 8 #1261 (@tomasbrod). Port of Bitcoin hash implementation #1208 (@jamescowens). Minor canges for the build documentation #1091 (@Lenni). Allow sendmany to be used without an account specified #1158 (@Foggyx420). 
Fixed
Fix cpids and validcpids not returning the correct data #1233 (@Foggyx420). Fix listsinceblock not showing mined blocks to change addresses, #501 (@Foggyx420). Fix crash when raining using a locked wallet #1236 (@Foggyx420). Fix invalid stake reward/fee calculation (@jamescowens). Fix divide by zero bug in getblockstats RPC #1292 (@Foggyx420). Bypass historical bad blocks on testnet #1252 (@Quezacoatl1). Fix MacOS memorybarrier warnings #1193 (@ghost). 
Removed
Remove neuralhash from the getpeerinfo and node stats #1123 (@Foggyx420). Remove obsolete NN code #1121 (@Foggyx420). Remove (lower) Mint Limiter #1212 (@tomasbrod). 
 
Thank you to all our of dedicated developers for all the hard work and long nights that have gone into making this release a reality. Thank you also to all of the dedicated folks on testnet who have been so helpful in finding and helping solve critical issues before we released this massive overhaul. We couldn't have done this without your help.
submitted by barton26 to gridcoin [link] [comments]

Mining ERC-918 Tokens (0xBitcoin)

GENERAL INFORMATION

0xBitcoin (0xBTC) is the first mineable ERC20 token on Ethereum. It uses mining for distribution, unlike all previous ERC20 tokens which were assigned to the contract deployer upon creation. 0xBTC is the first implementation of the EIP918 mineable token standard (https://eips.ethereum.org/EIPS/eip-918), which opened up the possibility of a whole new class of mineable assets on Ethereum. Without any ICO, airdrop, pre-mine, or founder’s reward, 0xBitcoin is arguably the most decentralized asset in the Ethereum ecosystem, including even Ether (ETH), which had a large ICO.
The goal of 0xBitcoin is to be looked at as a currency and store of value asset on Ethereum. Its 21 million token hard cap and predictable issuance give it scarcity and transparency in terms of monetary policy, both things that Ether lacks. 0xBitcoin has certain advantages over PoW based currencies, such as compatibility with smart contracts and decentralized exchanges. In addition, 0xBTC cannot be 51% attacked (without attacking Ethereum), is immune from the “death spiral”, and will receive the benefits of scaling and other improvements to the Ethereum network.

GETTING 0xBITCOIN TOKENS

0xBitcoin can be mined using typical PC hardware, traded on exchanges (either decentralized or centralized) or purchased from specific sites/contracts.

-Mined using PC hardware

-Traded on exchanges such as


MINING IN A NUTSHELL

0xBitcoin is a Smart Contract on the Ethereum network, and the concept of Token Mining is patterned after Bitcoin's distribution. Rather than solving 'blocks', work is issued by the contract, which also maintains a Difficulty which goes up or down depending on how often a Reward is issued. Miners can put their hardware to work to claim these rewards, in concert with specialized software, working either by themselves or together as a Pool. The total lifetime supply of 0xBitcoin is 21,000,000 tokens and rewards will repeatedly halve over time.
The 0xBitcoin contract was deployed by Infernal_Toast at Ethereum address: 0xb6ed7644c69416d67b522e20bc294a9a9b405b31
0xBitcoin's smart contract, running on the Ethereum network, maintains a changing "Challenge" (that is generated from the previous Ethereum block hash) and an adjusting Difficulty Target. Like traditional mining, the miners use the SoliditySHA3 algorithm to solve for a Nonce value that, when hashed alongside the current Challenge and their Minting Ethereum Address, is less-than-or-equal-to the current Difficulty Target. Once a miner finds a solution that satisfies the requirements, they can submit it into the contract (calling the Mint() function). This is most often done through a mining pool. The Ethereum address that submits a valid solution first is sent the 50 0xBTC Reward.
(In the case of Pools, valid solutions that do not satisfy the full difficulty specified by the 0xBitcoin contract, but that DO satisfy the Pool's specified Minimum Share Difficulty, get a 'share'. When one of the Miners on that Pool finds a "Full" solution, the number of shares each miner's address has submitted is used to calculate how much of the 50 0xBTC reward they will get. After a Reward is issued, the Challenge changes.
A Retarget happens every 1024 rewards. In short, the Contract tries to target an Average Reward Time of about 60 times the Ethereum block time. So (at the time of this writing):
~13.9 seconds \* 60 = 13.9 minutes
If the average Reward Time is longer than that, the difficulty will decrease. If it's shorter, it will increase. How much longer or shorter it was affects the magnitude with which the difficulty will rise/drop, to a maximum of 50%. * Click Here to visit the stats page~ (https://0x1d00ffff.github.io/0xBTC-Stats) to see recent stats and block times, feel free to ask questions about it if you need help understanding it.

MINING HARDWARE

Presently, 0xBitcoin and "Alt Tokens" can be mined on GPUs, CPUs, IGPs (on-CPU graphics) and certain FPGAs. The most recommended hardware is nVidia graphics cards for their efficiency, ubiquity and relatively low cost. As general rules, the more cores and the higher core frequency (clock) you can get, the more Tokens you will earn!
Mining on nVidia cards:
Mining on AMD cards:
Mining on IGPs (e.g. AMD Radeon and Intel HD Graphics):
Clocks and Power Levels:

MINING SOFTWARE AND DESCRIPTIONS

For the most up-to-date version info, download links, thread links and author contact information, please see this thread: https://www.reddit.com/0xbitcoin/comments/8o06dk/links_to_the_newestbest_miners_for_nvidia_amd/ Keep up to date for the latest speed, stability and feature enhancements!
COSMiC Miner by LtTofu:
SoliditySha3Miner by Amano7:
AIOMiner All-In-One GPU Miner:
TokenMiner by MVis (Mining-Visualizer):
"Nabiki"/2.10.4 by Azlehria:
~Older Miners: Older and possibly-unsupported miner versions can be found at the above link for historical purposes and specific applications- including the original NodeJS CPU miner by Infernal Toast/Zegordo, the '1000x' NodeJS/C++ hybrid version of 0xBitcoin-Miner and Mikers' enhanced CUDA builds.

FOR MORE INFORMATION...

If you have any trouble, the friendly and helpful 0xBitcoin community will be happy to help you out. Discord has kind of become 0xBTC's community hub, you can get answers the fastest from devs and helpful community members. Or message one of the community members on reddit listed below.
Links
submitted by GeoffedUP to gpumining [link] [comments]

I hate my Fucking Mining Rig - Short Story of my mining adventure (Don't really hate it)

Wanted to write a short write up on my journey of Crypto mining for some of the newer people and people who want to get into it. Not trying to discourage anyone from starting, but want to show the progression of a newbie.
So I am a good with computers and learned of Bitcoin when it was about $7 a coin. Laughed at the idea of some computer doing some math and getting some BS currency. Million dollar mistake on my part, but hindsight is always 20/20.
Anyways, Learned about ethereum in May. Bought some at around $180 and bought all the way up to $330. Now to the mining rig. Ran all of the calculations and with a 180 hashrate and 900 watts I was gonna get 6-7 Eth per month. Shit was gonna be profitable in under 3 months. I was gonna be a fucking crypto allstar and be rich as fuck!
Bought all of my parts literally the day before they were nonexistent. Literally bought the last RX480's from Amazon. Here is a list of my parts.
Asrock board Pentium dual core processor 4 Gb of ram 128 gb SSD 1200 watt Rosewill PSU 6 Sata to Molex PCI Risers (Junk) 6 RX480's - 2 Asus Strix, 4 Gigabyte Total cost - Roughly $2,500 (Pennies compared to my future ROI)
Please keep in mind that I am not posting every single miner issue that I ran into such as fucking with Wattman for a few weeks before learning about Trixx and Afterburner.
I've built computers before, so that part wasn't hard. Set everything up and get windows 10 running.
Problem 1 - Computer doesn't see all of the cards. Had to run the drivers a few times and tweak some shit, but got all 6 cards seen.
Miner hurdle (See what I did there) but off to the races. Let's get this bitch running so I can begin planning my retirement.
Get Claymore running, Got Trixx to overclock. Ran my cards at -96, 1200, 2200 fans at 85% (Cause I'm cool like that.) Major stability issues from the start. 1 card (Asus) would crash all the time. Didn't know about the watch dog feature in claymore that would restart my rig when a card crashed. Great feature but my computer would go into this state of having power, but not loading the operating system. Even if it did restart, most of the time claymore would get stuck right before setting the dag's and would just lock up. (Claymore program is awesome by the way, this was my rigs fault)
Could not get this fucking Asus card to stop crashing, even on stock settings. Sent the bitch back RMA style. Asus said something was wrong and sent me a new one.
Awesome, lets get this bitch running. I need to start looking at sick houses in Costa Rica to move to once I am rich as Fuck!
New card makes things better for a few days. Not 100% stable but better. Go to vegas for a driving thing (Race cars - Future rich guy stuff) and this mechanical demon starts crashing every few hours. Luckily I had Google remote desktop installed so I could log on and restart it or change settings in Trixx. Had to have my GF unplug it and plug it in a few times.
Get back home, fuck with this thing but still random crashes on random cards. Decide it is the PCI risers. Contact seller who will send me some more for free. Slow boat from china took two weeks to get them. They arrive but still some of them are bad. Can't seem to piece together 6 good ones.
Did some research online (Ethereum Forum and Reddit) and decided to get some new style of risers V007 6 Pin to Sata ($70) and they take a month to get here. Plug them all in and they seem to be working much better. Decent stability, But I ain't got time for fucking stock bios. Let's ramp these bitches up and get 32 MHs per card at 600 watts from the wall!
Actually flashing the bios was pretty easy. Thank you 6 pound 9 ounce baby jesus! Long story short had some major stability issues and bounced around with some different timing straps before finding the right ones. (Uber 3.1 for Samsung memory)
So now that we've got some good hash speeds and decent stability let's ramp this private ATM up a little bit by dual mining some Decred. Get dual mining up and running. go to sleep. Wake up the next morning expecting to see myself on the top 100 forbes list. look at my mining rig stats on my phone and see that it died roughly and hour after I went to sleep. Walked toward my rig on the red carpet I had just installed and saw that it was off. Flicked on the light to check it out. No light, WTF? Well I'll be god damned, no power in this whole fucking room. Checked my breakers and sure enough this metal motherfucker tripped my breaker.
No worries though. I'm smart as fuck. I'll just undervolt the shit out of it to get the power down. No way in hell I am just mining ether. I'm going balls to the wall!
As you can expect I had many days of stability issues and tripped breakers. But fuck it, I have homeowners insurance. Burning it to the ground will be covered. (Didn't happen)
My surge protector must be maxed out. Let's buy a bigger one ($25). Same issues.
Fuck Decred, I'll mine SIA, less power. Damn I'm smart.
Rig is more stable with Sia and no tripped breakers. Family medical emergency, have to fly north for a few days. But my rig has been fairly stable and I've got remote desktop if anything goes wrong.
Arrive at airport, check mining stats, rig is down. No worries remote desktop. FUCK, not responsive, no way to remote into the rig and no way to remotely power it off and on.
Lost 4 days of mining. But no worries the difficulty is only, Holy shit that's high! But the price of Ether will make up for it. Ether crashed to the $200's. Oh well, maybe a 10 room house in Costa instead of a 12. No sweat.
Get back to my house and this whore of a machine is just sitting there in a computer coma. It's on but it's not. LED lights glaring at me like "Fuck you human, I ain't doing your stupid math problems!" Fuck you machine, I'm your master. You will do my math problems and you will fucking like it.
My AMD Drivers seem to disappear and the computer goes into a coma like state. Someone on Reddit suggested using the 16.9.2 drivers. Installed and they worked better.
Still random crashing. This shitty PSU must be maxed out. Fuck you PSU, I'm getting you a little brother (EVGA 750 gold $120.)
What do you mean you have to jerry rig a second PSU so it starts without being connected to a motherboard? 2 more hours of my life wasted.
But finally some stability. On my way to being fucking rich. I start looking at people in bentley's and can only laugh. You dumb fuck, I'm gonna be way richer then you. Gonna get a Bugatti for each day of the week.
Damn this difficulty is a bitch. Fuck you Genesis Mining and your pallets of GPU's. You're killing me smalls!
But anyway, on my way to rolling around in my fuck you money!
Fuck you dag file 135, you're killing my future millions. Fuck you dag 138, you dropped me to 167 mhs.
Thank god AMD was there to save my ass with their dope ass blockchain drivers.
download, run DDU, Restart, install drivers, restart, run pixel patch, restart. Perfect, I'm in the money now! I can taste the caviar and champagne already.
Now my cards only run 4 Mhs each. WTF? Try a bunch of the other new drivers. Same shit. Roll back to 16.9.2 and they run fine, just at 167 instead of 180.
Someone on a forum said he had the same issue and did a fresh install of windows 10 and it worked.
So I'll just reformat my SSD (Windows wouldn't do a fresh install within the operating system. Fuck you Bill Gates! Gonna buy you once I get this thing running at 180.)
Format SSD, plug back in, throw in my gangster ass boot USB drive. Ramdisk error. Fuck you Bill Gates! Reformat SSD multiple times, lots of forum reading. Install windows from another computer through command prompt (I'm a coder now as well.) This shit has got to work, I did it in command prompt bitches!
Same fucking error. Now down to an 8 bedroom house in Costa and only 6 Bugattis.
Let's try unplugging my 6 cards and see if that works. Thank you 6 pound 9 ounce baby jesus. Windows installed.
New drivers work and I'm back at 180! Raking in the cash now.
With those speeds my Asus cards crashed. Had to dial down the hashrate to 177.5 for them to be stable. So now going to use some commands in claymore to run the Asus cards at lower speeds while letting my other cards mine harder.
I wrote this to let people know that mining isn't all Bugatti's and caviar. These machines are fickle little cunts that do what they want. No system is the same. So when you post on a forum, people will give you advice on what may work. But what works for them, may not work on your rig. In the end it's up to you to figure it out.
I have spent countless hours after work and on weekends working on this bitch. Hell I've probably spent a few hours just staring at it and thinking about all of the ways I could destroy it slowly.
While I love Etheruem and do value the knowledge gained, I would have made more money just buying Eth and holding.
The guys you see on youtube building sick rigs with crazy specs have been at it for a while. They have worked through the process and know how to solve all of the problems. You have not and will have to work them out on your own.
My whore of a rig will pay for itself soon. But I would suggest that if you want to start building a new mining rig. Check the difficulty chart and make sure you have tons of free time to fuck with it.
I'd post my wallet address for donations since I just saved you $2,600. But I am afraid hackers will steal my monies :)
Hope you enjoyed my mining life story from the past few months.
submitted by dank4us12 to EtherMining [link] [comments]

For the newbies: You may have heard that Bitcoin works by "solving math problems", but what are the math problems?

Disclaimer: This has probably been covered before, and in more approachable language, so if this explanation is pointless duplication, let me know and I'll delete it.
So the math problems in Bitcoin aren't your traditional math: your computer isn't solving algebra problems or partial differentials. They involve cryptographic hashes: you might've come across these when you download a file, where the website says "here's the file, and here's a hash you can use to verify that the file downloaded properly". So your process of verification would be:
Download -> Hash(Downloaded File) -> Is Hash The Same? 
Say you downloaded a copy of Audacity for OSX, and the site says "the MD5 hash for audacity-macosx-ub-2.1.2.dmg is 535e103d9bc4a4625d71260c3a427d09 if you want to check it downloaded properly". So you download the file, head to your command prompt, and:
$ md5 audacity-macosx-ub-2.1.2.dmg MD5 (audacity-macosx-ub-2.1.2.dmg) = 535e103d9bc4a4625d71260c3a427d09 
Hey, it's the same.
Now, hashes work by taking all the numbers in the file and Doing Something to them; the simplest would, of course, be the checksum: add all the numbers together. One big problem with checksumming though: if you add 1 to a number somewhere in the file, and subtract 1 elsewhere, you get a corrupted file with the same checksum. Not ideal.
So algorithms like MD5, SHA-1 and the like arose, which do more complicated things. The number that falls out of these is quite large: MD5, for example, outputs a 128-bit number (the biggest value is something like 80 quintillion quintillion) but it's not the absolute value of the number that's important, just the fact that it's the same as what the website says it should be.
Aside: "But if the hash is just a huge number, why does it have those weird letters in?"
It's just written in hexadecimal (base 16) instead of base 10. In your average decimal base-10 number, the digits are 0-9 and the number values go units, tens, hundreds, thousands, etc.
In base 16, the digits are 0-9 then a-f (ten to fifteen), and the number values go units, sixteens, two-hundred-and-fifty-sixes, four-thousand-and-ninety-sixes, etc.
Now. Bitcoin uses this same technology (it uses the SHA-256 algorithm in particular) to hash the contents of each block of transactions that comes through. It looks a little like this:
Hash of the last block -----\ | Hash of the transactions --+ SHA256 -> This block's hash in this block | (twice) | Current time ----------/ 
And thus the block chain gets built: "this block's hash" falls out of the above algorithm, and gets fed into the algorithm for the next block.
Except SHA-256 doesn't take long to compute; a cellphone can do literally millions of these hashes per second. Here's where the genius of Bitcoin comes in: there's an artificial limit placed by the algorithm on how fast blocks can be generated, and it doesn't matter how fast your computer (or the whole network of computers) is at generating these hashes. It works by adding one thing to the above diagram:
Hash of the last block -----\ | Hash of the transactions --+ SHA256 -> This block's hash in this block | (twice) | Current time ----------+ | A number to twiddle -------/ 
(The technical literature actually calls it a "nonce".)
I said above that the numeric value of the hash isn't important when you download a file, just the fact that it matches what the website says it should be. In Bitcoin, the numeric value of the hash is important: it needs to be less than a certain value (the "target") for the block you make to be accepted by the network. For example, (as of the time of writing) the last block had a hash of 000000000000000001ef62f299ea93356f4d52c75ff3cc442b4a073e90f947e0; look at all those zeros at the front!
SHA-256 is very good at making an even distribution of its numeric value: futz with the content of what you're hashing even a tiny bit, and the number that falls out is vastly different. So, you need to do a lot of twiddling of that nonce, to find a block where the hash comes out with all those zeros at the front.
In fact, you need to do so much twiddling that, on average, the entire network of computers doing this will only find one solution to the problem every ten minutes. That solution gets broadcast to the network, the other computers will plug it in as "the hash of the last block", and keep going.
One more question you might have: what happens when computers suddenly get a lot faster at doing these calculations, and they can rattle their way to a solution in a minute, or 30 seconds?
Bitcoin has a solution: change the target, to make it even lower. This is referred to as a "change in difficulty", and happens around every two weeks if the blocks come out every ten minutes (every 2,016 blocks). If the blocks come out faster, the difficulty changes sooner, and changes by more, to get things back on the ten-minutes-per-block track.
Conversely, if computers suddenly get very slow at doing this work and blocks only come out once an hour, the difficulty will change to make life easier. (Again, it'll only change every 2,016 blocks, so it might take a while to build the chain up to that point; until then, we'd have to suffer with slow blocks.)
So, I hope this was useful, and that it was accurate. It helped to clarify things in my mind, at least; let me know if it helped (and if I missed anything).
submitted by OrangeredStilton to Bitcoin [link] [comments]

Dao Ethereum va dau tu Ethereum nhu the nao cho hieu qua tin tuc ve Ethereum tai Viet Nam

Dao Ethereum va dau tu Ethereum nhu the nao cho hieu qua tin tuc ve Ethereum tai Viet Nam
Xem tại đây.

Ethereum được mệnh danh là Bitcoin 2.0 vì cuộc cách mạng về kỹ thuật mà ETH mang lại khi ra đời. Những câu hỏi xung quanh Ethereum mà người mới tìm hiểu thị trường cryptocurrency thường đặt ra như cách đào Ethereum, đầu tư Ethereum, “cách chơi” Ethereum, cách kiếm Ethereum miễn phí và những dự đoán giá Ethereum năm 2018, 2019,… sẽ được giải đáp trong bài viết này.

  1. Cách đào Ethereum và nơi mua máy đào
1.1. Đào Ethereum với Minergate

Hiện nay, có khá nhiều cách đào Ethereum nhưng với người mới thì một số cách đào ETH rất phức tạp. Trong bài viết này, tiendientu.org sẽ hướng dẫn đào Ethereum theo một cách đơn giản và dễ thực hiện là đào Ethereum với Minergate. Ngoài ra, có thể sử dụng một số tool đào ETH như Claymore Ethereum,…

Minergate là một trong những pool đào ETH tốt nhất và phổ biến nhất trên thế giới, nên khi mới bắt đầu, thợ đào có thể chọn pool đào ETH này để tiến hành đào Ethereum.

Bước 1: Đăng ký tài khoản Minergate

Truy cập vào website https://minergate.com/ để tiến hành đăng ký tài khoản.

Sau khi điền thông tin Email và Password, chọn “Sign up & start mining” để đăng ký, sau đó hệ thống của Minergate sẽ gửi một Email để kích hoạt tài khoản. Bạn vào Email rồi bấm vào đường link nhận được.

Bước 2: Tải phần mềm đào Ethereum

Bước 2: Tải phần mềm đào Ethereum.

Click vào nút Download tương ứng với hệ điều hành của máy tính.

Sau khi tải về, bạn tiến hành cài đặt theo các bước. Cài đặt tool đào Ethereum của Minergate khá đơn giản, cũng tương tự như cài các phần mềm bình thường.

Tiến hành cài đặt tool đào Ethereum.

Sau khi cài đặt xong, khởi động chương trình rồi đăng nhập vào để bắt đầu đào Ethereum.

Đăng nhập tài khoản sau khi cài đặt xong tool đào ETH.

Bước 3: Bắt đầu đào Ethereum

– Click chọn Tab Miner.

– Chọn Coin muốn đào là Ethereum.

– Chọn số nhân muốn đào.

– Sau đó click chọn CPU Mining và GPU Mining. Nghĩa là bạn chọn đào Ethereum bằng CPU và GPU.

Lúc này chương trình sẽ mất khoảng 2 – 5 phút để khởi động.

Bước 3: Bắt đầu đào Ethereum.

1.2. Cấu hình máy đào Ethereum chuyên dụng

Tham khảo cấu hình phần cứng đào Ethereum như sau:

  • Main: Nên chọn main có 5 khe PCI-E, như: Biostar H81 Hifi, Asrock H81 Pro BTC motherboard,…
  • CPU: Celeron G3250 hay G1840 có thể giúp bạn tiết kiệm chi phí.
  • RAM: 4GB DDR3 cài hệ điều hành Win10 Untimate 64Bit để chạy phần mềm đào Ethereum.
  • Nguồn: Nên chọn nguồn có công suất thực như HDD/SSD.
  • HDH: Nên cài Win10 64Bit và tắt hết các hiệu ứng Win, tắt update, để Classic, tắt security, đặt Power Option là High performance.
  • VGA: Đây là yêu cầu quan trọng nhất khi cấu hình máy đào ETH chuyên dụng. Bạn cần tìm hiểu kỹ thông tin tốc độ đào Ethereum của các dòng Card màn hình khác nhau trước khi lựa chọn.
Sau khi đã nắm được hết sức mạnh của GPU là bao nhiêu Mh/s, thì bạn có thể thử tính với sức mạnh như vậy, một ngày mình có thể khai thác Ethereum bao nhiêu ở link: https://minergate.com/calculatoethereum.

Kiểm tra với máy đào ETH được cấu hình, một ngày có thể đào bao nhiêu ETH.

Là một miner (thợ đào), Ethereum difficulty hay độ khó đào Ethereum là yếu tố quan trọng cần lưu ý. Độ khó đào ETH tăng cao khi càng có nhiều miner tham gia cạnh tranh đào, dẫn đến tỷ lệ đào trúng ETH thấp đi.

Khi chuẩn bị bắt đầu đào ETH, bạn nên cân nhắc và tìm hiểu kỹ những vấn đề này.

1.3. Mua bán máy đào Ethereum

Sau khi đã tìm hiểu kỹ những thông tin liên quan đến vấn đề đào Ethereum, bạn sẽ muốn tìm cách mua bán máy đào Ethereum, hoặc là để tự mình đào ETH, hoặc là làm trung gian mua đi bán lại.

Hiện trên facebook, telegram có nhiều hội nhóm mua bán trâu cày ETH (bán máy đào Ethereum), bạn có thể tham gia và tìm hiểu ở những diễn đàn của dân “chuyên chăn trâu” này để có thêm nhiều kiến thức, được giải đáp thắc mắc, vấn đề phát sinh.

1.4. Cách kiếm Ethereum miễn phí

Nếu không có nhiều vốn đầu tư những dàn máy đào Ethereum chuyên dụng, chắc hẳn các bạn muốn tìm những cách đào Ethereum miễn phí (đào ETH free) hay kiếm ETH free. Thật ra, chỉ cần search Google là bạn có thể có hàng ngàn kết quả, nhưng phải đặc biệt lưu ý là không có chuyện gì dễ dàng, có rất nhiều trang web lừa đảo (scam) trong cryptocurrency.

Một số cách kiếm Ethereum free như sau:

  • Đào Ethereum free trên một trang web. Dĩ nhiên điều tiên quyết là bạn phải tìm được website uy tín. Cách này có thể trả về rất ít ETH.
  • Tham gia các chương trình airdrop, bounty của các dự án ICO. Sau đó, dự án có thể trả cho bạn bằng ETH hoặc token dự án, bạn bán ra trên các sàn giao dịch Ethereum để thu về ETH.
tiendientu.org-dau-tu-ethereum-5
Cách kiếm Ethereum miễn phí.

Những cách kể trên chỉ là lý tưởng, độc giả cần nghiên cứu, xem xét kỹ các hình thức kiếm ETH miễn phí, vì có thể dễ dàng rơi vào một vụ scam làm mất cả thời gian, sức lực lẫn tiền bạc của chính mình.

  1. Cách đầu tư Ethereum
2.1. Có nên đầu tư Ethereum không?

Cuối năm 2017 và giai đoạn đầu năm 2018, cái tên Ethereum nổi lên trong cộng đồng như là một trong những đồng coin giá trị đáng đầu tư nhất. Đã có rất nhiều đánh giá tốt về đồng coin của Vitalik Buterin, và đồng thời giá ETH thực sự mang lại lợi nhuận cho nhà đầu tư qua những lần tăng mạnh.

Tuy nhiên, càng dần về cuối năm 2018, tin tức Ethereum tiêu cực xuất hiện liên tiếp. Casper Ethereum và những nâng cấp khác đều lần lượt bị trì hoãn, làm cộng đồng dần mất niềm tin với ETH. Quá trình chuyển thuật toán ETH từ Proof-of-Work sang Proof-of-Stake thu hút sự quan tâm rất lớn, nhưng cần tốn nhiều thời gian để thực hiện, nên không thể trở thành “cú hit” đẩy giá nhất thời.

Có nên đầu tư Ethereum không?

Vậy có nên đầu tư ETH nữa không? “Cách chơi” Ethereum như thế nào để sinh lời nhất? Điều này tùy thuộc vào sự tin tưởng của bạn vào tương lai Ethereum. Ngoài vấn đề về giá cả, chúng ta cần hiểu biết cả những công nghệ và phát triển đằng sau đồng altcoin này, từ đó có được đánh giá đúng đắn nhất về ETH và dự đoán giá Ethereum năm 2018 cũng như những năm tiếp theo. Cách chơi ETH có nhiều kiểu, trade lướt sóng hay đầu tư dài hạn là tùy thuộc vào phương pháp và nhận định của từng người.

Theo những ETH news mới nhất, đợt hard fork Ethereum tiếp theo là Constantinople sau bao lần trì hoãn đã được ấn định vào tháng 1/2019. Cộng đồng đang “nín thở” chờ đón Ethereum hard fork này, vì nó là một yếu tố quan trọng trong quá trình phát triển công nghệ của đồng altcoin. Nếu Constantinople thành công theo đúng dự kiến, nhà đầu tư và người hâm mộ có lẽ sẽ có thêm lòng tin khi đầu tư Ethereum.

2.2. Check ETH transaction – Kiểm tra giao dịch ETH

Để kiểm tra lịch sử giao dịch Ethereum, hay lịch sự chuyển ETH từ ví này sang ví khác, chúng ta thực hiện theo các bước sau:

  • vào https://etherscan.io/
  • nhập vào ô Search by Address… địa chỉ ví A hoặc ví B
  • chọn GO
Etherscan (không phải là Ethereum scan nhé!) sẽ show ra lịch sử giao dịch của ví, hay tất cả TxHash của chiếc ví. Muốn check TxID ETH nào, bạn click vào giao dịch đó để xem chi tiết.

Check ETH transaction.
Ở mục TxReceipt Status:

  • nếu Success tức là giao dịch này đã thực hiện thành công và ví người nhận đã nhận được ETH
  • nếu Pending nghĩa là giao dịch này vẫn đang trong quá trình xác nhận và ví của người nhận vẫn chưa nhận được ETH

Kiểm tra giao dịch ETH.

Bên cạnh check ETH transaction, một nỗi băn khoăn khác của người dùng là Gas limit Ethereum là gì? Gas limit Ethereum được gọi là giới hạn năng lượng vì đó là số Ether tối thiểu mà bạn sẵn sàng chi trả cho phí giao dịch. Điều này tránh được tình huống có một lỗi ở nơi nào đó trong hợp đồng, và bạn gửi 1 ETH mà không có nơi nhận. Nếu bạn không đủ gas limit Ethereum thì khi gửi giao dịch sẽ gặp lỗi “Out of Gas” và giao dịch không được thực hiện.

Bạn có thể kiểm tra các mức gas ETH hiện nay với ETH Gas Station tại địa chỉ web: https://ethgasstation.info/index.php để tính toán được phí giao dịch ETH phù hợp nhất.

ETH Gas Station.v

  1. Cách tìm kiếm thông tin và đọc thông tin về Ethereum
Thị trường cryptocurrency biến động rất mạnh và news Ethereum xuất hiện liên tục. Để cập nhật những thông tin, tin tức Ethereum mới nhất và thường xuyên, các bạn có thể theo dõi trên các trang web ETH news phổ biến như: Cointelegraph, Bitcoinist, CCN, News.bitcoin,… và các mạng xã hội như Twitter, Telegram, Facebook cũng như những diễn đàn cryptocurrency như Bitcointalk.

Dù có một số dự báo giá Ethereum 2018 rất tốt, sẽ tăng mạnh nhưng thực tế thì giá ETH liên tục biến động lên xuống thất thường. Vào ngày 13/1/2018, giá Ethereum đạt đỉnh điểm hơn 1.440 USD, đánh dấu “thời khắc huy hoàng” của đồng altcoin là “vua của mọi altcoin” khi đó. Nhưng sau đó, giá ETH bắt đầu sụt giảm, đến tháng 12/2018 chỉ dao động quanh cột mốc 100 USD. Những biến động đó được thể hiện một phần qua biểu đồ giá ETH trên Coinmarketcap như sau:

Biểu đồ giá ETH.

  1. Tóm tắt
Hiện nay, có khá nhiều cách đào Ethereum nhưng với người mới thì một số cách đào ETH rất phức tạp. Trong bài viết này, tiendientu.org sẽ hướng dẫn đào Ethereum theo một cách đơn giản và dễ thực hiện là đào Ethereum với Minergate. Ngoài ra, có thể sử dụng một số tool đào ETH như Claymore Ethereum,… Minergate là một trong những pool đào ETH tốt nhất và phổ biến nhất trên thế giới, nên khi mới bắt đầu, thợ đào có thể chọn pool đào ETH này để tiến hành đào Ethereum.

Là một miner (thợ đào), Ethereum difficulty hay độ khó đào Ethereum là yếu tố quan trọng cần lưu ý. Độ khó đào ETH tăng cao khi càng có nhiều miner tham gia cạnh tranh đào, dẫn đến tỷ lệ đào trúng ETH thấp đi.

Đào Ethereum và đầu tư Ethereum như thế nào cho hiệu quả, tin tức về Ethereum tại Việt Nam.

Vậy có nên đầu tư ETH nữa không? “Cách chơi” Ethereum như thế nào để sinh lời nhất? Điều này tùy thuộc vào sự tin tưởng của bạn vào tương lai Ethereum. Ngoài vấn đề về giá cả, chúng ta cần hiểu biết cả những công nghệ và phát triển đằng sau đồng altcoin này, từ đó có được đánh giá đúng đắn nhất về ETH và dự đoán giá Ethereum năm 2018 cũng như những năm tiếp theo.

Check ETH transaction trên Etherscan (không phải Ethereum scan) để kiểm tra lịch sử các giao dịch Ethereum.

Cập nhật tin tức mới nhất về blockchain và cryptocurrency tại Tiendientu.org
submitted by tiendientuorg to u/tiendientuorg [link] [comments]

New people please read this. [upvote for visibility please]

I am seeing too many new people come and and getting confused. Litecoin wiki isn't the greatest when it comes to summing up things so I will try to do things as best as I can. I will attempt to explain from what I have learned and answer some questions. Hopefully people smarter than me will also chime in. I will keep this post updated as much as I can.
Preface
Litecoin is a type to electronic currency. It is just like Bitcoin but it there are differences. Difference explained here.
If you are starting to mine now chances are that you have missed the Bitcoin mining train. If you really want your time and processing power to not go to waste you should mine LTC because the access to BTC from there is much easier.
Mining. What is it?
Let's get this straight. When making any financial commitment to this be prepared to do it with "throw away" money. Mining is all about the hashrate and is measured in KH/s (KiloHash/sec). Unlike the powerful ASICs (Application Specific Integrated Circuit) that are used to mine bitcoins using hashrates in the GH/s and even TH/s, litecoin mining has only been able to achieve at the very best MH/s. I think the highest I've seen is 130 MH/s so far. Which leads us to our next section.
Mining Hardware
While CPU mining is still a thing it is not as powerful as GPU mining. Your laptop might be able to get 1 a month. However, I encourage you to consult this list first. List of hardware comparison You will find the highest of processors can maybe pull 100 KH/s and if we put this into a litecoin mining calculator it doesn't give us much.
Another reason why you don't want to mine with your CPU is pretty simple. You are going to destroy it.
So this leaves us with GPUs. Over the past few months (and years) the HD 7950 has been the favourite because it drains less power and has a pretty good hashrate. But recently the introduction of the R9 290 (not the x) has changed the game a bit. People are getting 850 KH/s - 900 KH/s with that card. It's crazy.
Should I mine?
Honestly given the current difficulty you can make a solid rig for about $1100 with a hashrate of 1700 KH/s which would give you your investment back in about a month and a half. I am sure people out there can create something for much cheaper. Here is a good example of a setup as suggested by dystopiats
PCPartPicker part list / Price breakdown by merchant / Benchmarks
Type Item Price
CPU AMD Sempron 145 2.8GHz Single-Core Processor $36.01 @ Amazon
Motherboard ASRock 970 EXTREME4 ATX AM3+ Motherboard $99.48 @ OutletPC
Memory Crucial Ballistix Tactical Tracer 4GB (1 x 4GB) DDR3-1866 Memory $59.99 @ Newegg
Video Card Sapphire Radeon HD 7950 3GB Video Card (3-Way CrossFire) $245.38 @ Newegg
Video Card Sapphire Radeon HD 7950 3GB Video Card (3-Way CrossFire) $245.38 @ Newegg
Video Card Sapphire Radeon HD 7950 3GB Video Card (3-Way CrossFire) $245.38 @ Newegg
Power Supply SeaSonic Platinum 860W 80+ Platinum Certified Fully-Modular ATX Power Supply $146.98 @ SuperBiiz
Total
Prices include shipping, taxes, and discounts when available. $1078.60
Generated by PCPartPicker 2013-11-29 00:52 EST-0500
Estimated Hashrate (with GPU overclocking) : 1900 KH/s
Hardware Fundamentals
CPU - Do you need a powerful CPU? No but make sure it is a decent one. AMD CPUs are cheap to buy right now with tons of power. Feel free to use a Sempron or Celeron depending on what Motherboard you go with.
RAM - Try to get at least 4 GB so as to not run into any trouble. Memory is cheap these days. I am saying 4 GB only because of Windoze. If you are plan to run this on Linux you can even get away with less memory.
HDD Any good ol 7200 RPM hard drive will do. Make sure it is appropriate. No point in buying a 1TB hard drive. Since, this is a newbie's guide I assumed most won't know how to run linux, but incase you do you can get a USB flash drive and run linux from it thus removing the need for hard drive all toghether. (thanks dystopiats)
GPU - Consult the list of hardware of hardware I posted above. Make sure you consider the KH/s/W ratio. To me the 290 is the best option but you can skimp down to 7950 if you like.
PSU - THIS IS BLOODY IMPORTANT. Most modern GPUs are power hungry so please make sure you are well within the limits of your power consumption.
MOTHERBOARD - Ok, so a pretty popular board right now is Gigabyte GA-990FXA-UD3 and the ASRock 970 Extreme4. Some people are even going for Gigabyte GA-990FXA-UD5 and even the mighty Gigabyte GA-990FXA-UD7 because it has more PCI-E slots. 6 to be exact. However you may not need that much. With risers you can get more shoved into less.
PCI-E RISERS - These are called risers. They come in x16 to x16 and x1 to x16 connections. Here is the general rule of thumb. This is very important. Always get a POWERED riser otherwise you will burn a hole in your MoBo. A powered rise as a molex connector so that additional power from PSU can be supplied.
When it comes to hardware I've provided the most basic knowledge you need. Also, take a look at cryptobader's website. This is very helpful. Please visit the mining section of Litecoin Forums and the litecoinmining subreddit for more indepth info.
Mining Software
Now that you have assembled your hardware now you need to get into a pool. But before you do that you need a mining software. There are many different ones but the one that is most popular is cgminer. Download it and make sure you read the README. It is a very robust piece of software. Please read this if you want to know more. (thanks BalzOnYer4Head)
Mining Pools
Now that your hardware and software is ready. I know nothing about solo mining other than the fact that you have to be very lucky and respectable amount of hashing power to decrypt a block. So it is better to join pools. I have been pool hopping for a bit and really liked give-me-coin previously known to the community as give-me-ltc. They have a nice mobile app and 0% pool fees. This is really a personal preference. Take a look at this list and try some yourself.
How do I connect to a pool?
Most pools will give you a tutorial on how to but the basics are as follows:
  • Signup for a pool
  • Create a worker for your account. Usually one worker per rig (Yes people have multiple rigs) is generally a good idea.
  • Create a .run file. Open up notepad and type cgminer.exe -o (address_to_the_miningpool:port_number) -u (yourusername.workername) -p (your_worker_password_if_you_made_one). Then File>Save As>runcgminer.run (Make sure the drop down is set to "All Files" and .txt document.) and save in the same folder as cgminer. That's it.
  • Double click on runcgminer.run (or whatever you named it) and have fun mining.
Mining Profitability
This game is not easy. If it was, practically everyone would be doing it. This is strictly a numbers game and there are calculations available that can help you determine your risk on your investments. 4 variables you need to consider when you are starting to mine:
Hardware cost: The cost of your physical hardware to run this whole operation.
Power: Measured in $/KwH is also known as the operating cost.
Difficulty rate: To put it in layman's terms the increase in difficulty is inversely proportional to amount of coin you can mine. The harder the difficulty the harder it is to mine coin. Right now difficulty is rising at about 18% per 3 days. This can and will change since all you miners are soon going to jump on the band wagon.
Your sanity: I am not going to tell you to keep calm and chive on because quiet frankly that is stupid. What I will tell you not to get too carried away. You will pull you hair out. Seriously.
Next thing you will need is a simple tool. A mining profitability calculator. I have two favourite ones.
coinwarz
I like this one cause it is simple. The fields are self explanatory. Try it.
bitcoinwisdom
I like this one because it is a more real life scenario calculator and more complicated one (not really). It also takes increasing difficulty into account.
Please note: This is the absolute basic info you need. If you have more questions feel free to ask and or google it!
More Below.
submitted by craeyon to litecoin [link] [comments]

How to Get The Most Profitable Cryptocurrencies to Mine and More in Google Sheets

Original Medium post found here: https://medium.com/spreadstreet/how-to-get-the-most-profitable-cryptocurrencies-to-mine-and-more-in-google-sheets-7b2ad2ebbdcd
One of the most challenging aspects of cryptocurrency mining is finding the most profitable coins to mine.
A few services exist, but nothing beats what the creators of WhatToMine.com have done in a few short months.
The big benefit of the data offered by WhatToMine is a ranking of cryptocurrencies by mining profitability.
The =SS() function, available in Google Sheets as part of the Spreadstreet Google Sheets Add-in, allows the user to pull in two seperate endpoints from the WhatToMine API:
  1. Stats — Used to compare the profitability of all GPU based cryptocurrencies
  2. ASIC — Used to compare the profitability of all ASIC coins

How to install

1. Go to the “Add-ons” menu, and click on “Get add-ons”.

Get Add-ons Menu

2. On the Add-ons panel, search for “Spreadstreet”, click on “+ FREE” to install it.

Click on +Free to install

3. Choose under which account you want to install the Add-on.

Choose Gmail Account

4. Spreadstreet needs to connect to an external API, click on “Allow”.

Click "Allow" when prompted
Note on security: All add-ins within the store go through a review. This is a wonderful security measure, especially in the Crypto industry, which is rife with scams and hacks.

5. Make sure the add-on is activated in your sheet:

  1. Go to Add-on > Spreadstreet > Help
  2. Click on View in store , then click on Manage and check Use in this document:
Click "Use in this document"
Tadaa You are now able to use the =SS() function to pull in all sorts of amazing data within the cryptocurrency space.
Example =SS() usage

How to use for GPU-Mineable Coins

How does WhatToMine calculate profitability for GPU-mineable cryptocurrencies?
What is the calculation missing?
Get most profitable GPU coins
Call the function =SS(“get-stats-whattomine”, true) to return various stats from GPU-minable cryptocurrencies.
Example usage using the GUI:
Open the Add-in

Click “Add” to view the list of available APIs

Click on the “WhatToMine” icon

Click “Stats”

Click “Insert”

Click “Run”. This will paste values into the currently selected Cell, and save that in the main GUI for future retrieval

Example usage using the =SS() Formula:

=QUERY(A:W,”select A, T where T is not null order by T desc”) returns the most profitable GPU-minable cryptocurrencies.

How to use for ASIC-Mineable Coins

How does WhatToMine calculate profitability for ASIC-mineable cryptocurrencies?
What is the calculation missing?
Get most profitable ASIC coins
Call the function =SS(“get-asic-whattomine”, true) to return various stats from ASIC-minable cryptocurrencies.
Example usage:

=QUERY(A:W,”select A, T where T is not null order by T desc”) returns the most profitable GPU-minable cryptocurrencies.

Common issues and how to fix:

  1. Do not keep your sheet open at all time. This will prevent the rates from refreshing. The rates will auto-refresh each time you re-open your sheet.
  2. The add-on may not work right away on other old spreadsheets. You need to do this to activate Spreadstreet: Open the old sheet, click the menu Add-ons / Spreadstreet / Help / View in store, and then click Manage and in the dropdown menu click Use in this document .

RESOURCES

Download the add-in: https://spreadstreet.io/tools/google-sheets-add-in
Help: https://spreadstreet.io/docs
First time install and login: https://www.youtube.com/watch?v=aLjtPR4T2bg
WhatToMine Stats endpoint help: https://spreadstreet.io/knowledge-base/whattomine-api-get-stats-endpoint/

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submitted by 1kexperimentdotcom to gpumining [link] [comments]

Repost - I hate my Fucking Mining rig! (Not really)(Long)

Wanted to write a short write up on my journey of Crypto mining for some of the newer people and people who want to get into it. Not trying to discourage anyone from starting, but want to show the progression of a newbie.
So I am a good with computers and learned of Bitcoin when it was about $7 a coin. Laughed at the idea of some computer doing some math and getting some BS currency. Million dollar mistake on my part, but hindsight is always 20/20.
Anyways, Learned about ethereum in May. Bought some at around $180 and bought all the way up to $330. Now to the mining rig. Ran all of the calculations and with a 180 hashrate and 900 watts I was gonna get 6-7 Eth per month. Shit was gonna be profitable in under 3 months. I was gonna be a fucking crypto allstar and be rich as fuck!
Bought all of my parts literally the day before they were nonexistent. Literally bought the last RX480's from Amazon. Here is a list of my parts.
Asrock board Pentium dual core processor 4 Gb of ram 128 gb SSD 1200 watt Rosewill PSU 6 Sata to Molex PCI Risers (Junk) 6 RX480's - 2 Asus Strix, 4 Gigabyte Total cost - Roughly $2,500 (Pennies compared to my future ROI)
Please keep in mind that I am not posting every single miner issue that I ran into such as fucking with Wattman for a few weeks before learning about Trixx and Afterburner.
I've built computers before, so that part wasn't hard. Set everything up and get windows 10 running.
Problem 1 - Computer doesn't see all of the cards. Had to run the drivers a few times and tweak some shit, but got all 6 cards seen.
Miner hurdle (See what I did there) but off to the races. Let's get this bitch running so I can begin planning my retirement.
Get Claymore running, Got Trixx to overclock. Ran my cards at -96, 1200, 2200 fans at 85% (Cause I'm cool like that.) Major stability issues from the start. 1 card (Asus) would crash all the time. Didn't know about the watch dog feature in claymore that would restart my rig when a card crashed. Great feature but my computer would go into this state of having power, but not loading the operating system. Even if it did restart, most of the time claymore would get stuck right before setting the dag's and would just lock up. (Claymore program is awesome by the way, this was my rigs fault)
Could not get this fucking Asus card to stop crashing, even on stock settings. Sent the bitch back RMA style. Asus said something was wrong and sent me a new one.
Awesome, lets get this bitch running. I need to start looking at sick houses in Costa Rica to move to once I am rich as Fuck!
New card makes things better for a few days. Not 100% stable but better. Go to vegas for a driving thing (Race cars - Future rich guy stuff) and this mechanical demon starts crashing every few hours. Luckily I had Google remote desktop installed so I could log on and restart it or change settings in Trixx. Had to have my GF unplug it and plug it in a few times.
Get back home, fuck with this thing but still random crashes on random cards. Decide it is the PCI risers. Contact seller who will send me some more for free. Slow boat from china took two weeks to get them. They arrive but still some of them are bad. Can't seem to piece together 6 good ones.
Did some research online (Ethereum Forum and Reddit) and decided to get some new style of risers V007 6 Pin to Sata ($70) and they take a month to get here. Plug them all in and they seem to be working much better. Decent stability, But I ain't got time for fucking stock bios. Let's ramp these bitches up and get 32 MHs per card at 600 watts from the wall!
Actually flashing the bios was pretty easy. Thank you 6 pound 9 ounce baby jesus! Long story short had some major stability issues and bounced around with some different timing straps before finding the right ones. (Uber 3.1 for Samsung memory)
So now that we've got some good hash speeds and decent stability let's ramp this private ATM up a little bit by dual mining some Decred. Get dual mining up and running. go to sleep. Wake up the next morning expecting to see myself on the top 100 forbes list. look at my mining rig stats on my phone and see that it died roughly and hour after I went to sleep. Walked toward my rig on the red carpet I had just installed and saw that it was off. Flicked on the light to check it out. No light, WTF? Well I'll be god damned, no power in this whole fucking room. Checked my breakers and sure enough this metal motherfucker tripped my breaker.
No worries though. I'm smart as fuck. I'll just undervolt the shit out of it to get the power down. No way in hell I am just mining ether. I'm going balls to the wall!
As you can expect I had many days of stability issues and tripped breakers. But fuck it, I have homeowners insurance. Burning it to the ground will be covered. (Didn't happen)
My surge protector must be maxed out. Let's buy a bigger one ($25). Same issues.
Fuck Decred, I'll mine SIA, less power. Damn I'm smart.
Rig is more stable with Sia and no tripped breakers. Family medical emergency, have to fly north for a few days. But my rig has been fairly stable and I've got remote desktop if anything goes wrong.
Arrive at airport, check mining stats, rig is down. No worries remote desktop. FUCK, not responsive, no way to remote into the rig and no way to remotely power it off and on.
Lost 4 days of mining. But no worries the difficulty is only, Holy shit that's high! But the price of Ether will make up for it. Ether crashed to the $200's. Oh well, maybe a 10 room house in Costa instead of a 12. No sweat.
Get back to my house and this whore of a machine is just sitting there in a computer coma. It's on but it's not. LED lights glaring at me like "Fuck you human, I ain't doing your stupid math problems!" Fuck you machine, I'm your master. You will do my math problems and you will fucking like it.
My AMD Drivers seem to disappear and the computer goes into a coma like state. Someone on Reddit suggested using the 16.9.2 drivers. Installed and they worked better.
Still random crashing. This shitty PSU must be maxed out. Fuck you PSU, I'm getting you a little brother (EVGA 750 gold $120.)
What do you mean you have to jerry rig a second PSU so it starts without being connected to a motherboard? 2 more hours of my life wasted.
But finally some stability. On my way to being fucking rich. I start looking at people in bentley's and can only laugh. You dumb fuck, I'm gonna be way richer then you. Gonna get a Bugatti for each day of the week.
Damn this difficulty is a bitch. Fuck you Genesis Mining and your pallets of GPU's. You're killing me smalls!
But anyway, on my way to rolling around in my fuck you money!
Fuck you dag file 135, you're killing my future millions. Fuck you dag 138, you dropped me to 167 mhs.
Thank god AMD was there to save my ass with their dope ass blockchain drivers.
download, run DDU, Restart, install drivers, restart, run pixel patch, restart. Perfect, I'm in the money now! I can taste the caviar and champagne already.
Now my cards only run 4 Mhs each. WTF? Try a bunch of the other new drivers. Same shit. Roll back to 16.9.2 and they run fine, just at 167 instead of 180.
Someone on a forum said he had the same issue and did a fresh install of windows 10 and it worked.
So I'll just reformat my SSD (Windows wouldn't do a fresh install within the operating system. Fuck you Bill Gates! Gonna buy you once I get this thing running at 180.)
Format SSD, plug back in, throw in my gangster ass boot USB drive. Ramdisk error. Fuck you Bill Gates! Reformat SSD multiple times, lots of forum reading. Install windows from another computer through command prompt (I'm a coder now as well.) This shit has got to work, I did it in command prompt bitches!
Same fucking error. Now down to an 8 bedroom house in Costa and only 6 Bugattis.
Let's try unplugging my 6 cards and see if that works. Thank you 6 pound 9 ounce baby jesus. Windows installed.
New drivers work and I'm back at 180! Raking in the cash now.
With those speeds my Asus cards crashed. Had to dial down the hashrate to 177.5 for them to be stable. So now going to use some commands in claymore to run the Asus cards at lower speeds while letting my other cards mine harder.
I wrote this to let people know that mining isn't all Bugatti's and caviar. These machines are fickle little cunts that do what they want. No system is the same. So when you post on a forum, people will give you advice on what may work. But what works for them, may not work on your rig. In the end it's up to you to figure it out.
I have spent countless hours after work and on weekends working on this bitch. Hell I've probably spent a few hours just staring at it and thinking about all of the ways I could destroy it slowly.
While I love Etheruem and do value the knowledge gained, I would have made more money just buying Eth and holding.
The guys you see on youtube building sick rigs with crazy specs have been at it for a while. They have worked through the process and know how to solve all of the problems. You have not and will have to work them out on your own.
My whore of a rig will pay for itself soon. But I would suggest that if you want to start building a new mining rig. Check the difficulty chart and make sure you have tons of free time to fuck with it.
I'd post my wallet address for donations since I just saved you $2,600. But I am afraid hackers will steal my monies :)
Hope you enjoyed my mining life story from the past few months.
Edit - Had an Asus card die on me and replaced it with a 1070ti. Nvidia is so much easier!
My rosewill 1200 watt PSU melted the 8 pin port and cable. Had to drop $300 on Amazons last 1300 EVGA.
But my rig has well surpassed it's cost and is still mining away like a champ. Eth for life!
submitted by dank4us12 to EtherMining [link] [comments]

Blockchain/Bitcoin for beginners 9: Bitcoin difficulty, target, BITS - all you need to know Bitcoin Hash Calculator How to Calculate Bitcoin Difficulty Cryptocurrency Mining Difficulty Explained - Mining Difficulty And Analysis The Difficulty of Mining Bitcoin

Find out what your expected return is depending on your hash rate and electricity cost. Find out if it's profitable to mine Bitcoin, Ethereum, Litecoin, DASH or Monero. Do you think you've got what it takes to join the tough world of cryptocurrency mining? The difficulty is a measure of how difficult it is to mine a Bitcoin block, or in more technical terms, to find a hash below a given target. A high difficulty means that it will take more computing power to mine the same number of blocks, making the network more secure against attacks. The difficulty adjustment is directly related to the total estimated mining power estimated in the ... Bitcoin Mining Difficulty. As I told above, Bitcoin mining is now much harder than old days. Today, solving a block can take years with your available hash rate, no matter how strong is your mining rig. So, in my suggestion always join mining pool where many other miners work together and give enough hash rate to solve a block. When a block solved by a mining pool, everybody rewarded with a ... difficulty = 10/60 * (3,600 * 1 tera hash) difficulty = 600,000 So this example calculation gives us a bitcoin difficulty of 600,000. The real difficulty has been at this value approximately in mid 2011. How is the bitcoin difficulty prediction calculated? To predict the next difficulty, the bitcoin client Bitcoin Calculator is an app that uses the current Bitcoin difficulty rate and your hash rate with the current currency exchange rate to calculate your profits when mining bitcoins.

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Blockchain/Bitcoin for beginners 9: Bitcoin difficulty, target, BITS - all you need to know

Live Bitcoin Trading With Crypto Trading Robot DeriBot on Deribit DeriBot Alternative channel 932 watching Live now Crypto Mining Difficulty 101 - Everything You Need to Know - Duration: 18:40. bitcoin cloud mining calculator current bitcoin difficulty litecoin mining calculator x11 mining calculator hash rate calculator gpu hashing power calculator # ... Download and watch How Much Will Bitcoin Difficulty Increase HD high quality mp4 3gp 144p 320p 720p 1080p videos to your phone free What is Bitcoin Mining Difficulty Bitcoin Mining Guide - Getting ... Bitcoin Hash Calculator use to calculate the profitability of Bitcoin and the tool to find good return bitcoin miners to buy. You can easily calculate how many Bitcoins mines with your hash rates ... Hash Raptor 23,887 views. 27:29. Bitcoin Mining Difficulty Hits ALL TIME HIGH! - Duration: 15:49. Red Panda Mining 1,504 views. 15:49. Did I finally lose all my $$$ in Cryptocurrency?? Crypto ...

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