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Looking for Technical Information about Mining Pools
I'm doing research on how exactly bitcoins are mined, and I'm looking for detailed information about how mining pools work - i.e. what exactly is the pool server telling each participating miner to do. It's so far my understanding that, when Bitcoins are mined, the following steps take place:
Transactions from the mempool are selected for a new block; this may or may not be all the transactions in said mempool. A coinable transaction - which consists of the miner's wallet's address and other arbitrary data - that will help create new Bitcoin will also be added to the new block.
All of said transactions are hashed together into a Merkle Root. The hashing algorithm is Double SHA-256.
A block header is formed for the new block. Said block header consists of a Version, the Block Hash of the Previous Block in the Blockchain, said Merkle Root from earlier, a timestamp in UTC, the target, and a nonce - which is 32 bits long and can be any value from 0x00000000 to 0xFFFFFFFF (a total of 4,294,967,296 nonce values in total).
The nonce value is set to 0x00000000, and said block header is double hashed to get the Block Hash of the current block; and if said Block Hash starts with a certain number of zeroes (depending on the difficulty), the miner sends the block to the Bitcoin Network, the block successfully added to the blockchain and the miner is awarded with newly created bitcoin.
But if said Block Hash does not start with the required number of zeroes, said block will not be accepted by the network, and the miner Double Hashes the block again, but with a different nonce value; but if none of the 4,294,967,296 nonce values yields a Block Hash with the required number of zeroes, it will be impossible to add the block to the network - and in that case, the miner will either need to change the timestamp and try all 4,294,967,296 nonce values again, or the miner will need to start all over again and compose a new block with a different set of transactions (either a different coinable transaction, a different set of transactions from the mempool, or both).
Now, what I'm trying to figure out is what exactly each miner is doing differently in a mining pool, and if it is different depending on the pool. One thing I've read is that a mining pool gives each participating miner a different set of transactions from the mempool. I've also read that, because the most sophisticated miners can try all 4,294,967,296 nonce values in less than a fraction of a second, and since the timestamp can only be updated every second, the coinbase transaction is used as a "second nonce" (although, it is my understanding that, being part of a transaction, if this "extra nonce" is changed, all the transactions need to be double hashed into a new Merkle Root); and I may have read someplace that miners could also be given the same set of transactions from the mempool, but are each told to use a different set of "extra nonce" values for the coinbase transaction. Is there anything else that pools tell miners to do differently? Is each pool different in the instructions it gives to the participating miners? Did I get anything wrong? I want to make sure I have a full technical understanding of what mining pools are doing to mine bitcoin.
Simple Python Script to Monitor the SEC Website for Bitcoin ETF
Here's a simple script that I thought I'd share with you guys with all the hype around monitoring for ETF updates. GitHub: https://github.com/coinables/python-bitcoin-etf YouTube Setup Instructions: https://www.youtube.com/watch?v=FvCrxNQYj5o A VERY SIMPLE python script(15 lines of code) that checks the SEC website (https://www.sec.gov/rules/sro/batsbzx.htm) for updates on the Bitcoin ETF. Tired of pressing "F5" all day waiting for an update from the SEC before March 11th 2017? This simple script will automate that process for you and tell whether or not there has been an update on the Bitcoin ETF. Step 1: Downloand and install Python.(Version 2 not 3) Step 2: Open up Python IDLE. Step 3: Go to File-> New File. Step 4: Copy & Paste the contents of https://github.com/coinables/python-bitcoin-etf/blob/masteetf.py into the new file you just created. Step 5: Save Step 6: Go to Run-> Run Module or Press F5 to run Updates every 90 seconds, you can change the update interval on line 5.
A long story and lesson about trusting people and managing expectations
So I'm not sure I'd you guys will enjoy this story or if it will just be removed but I currently need to vent because well this happened. And I've lost alot of faith in people. If you don't feel like reading the whole thing I tried to put a TL;DR in each paragraph. Trading- So to kindof preface the story, I am a young guy that is very interested in all things finance such as investing/trading. Because of this I got involved into the Foreign Exchange market(Forex) at the beginning of 2016 and I got very lucky going from $200 to ~$15,000 in 6 months and then unluckily went from ~$15,000 to $0 in less than a minute. So while I was trading this I still worked my normal job(military) and at this job people knew I was trading and doing quite well, they'd frequently ask where I'm at with my trading. So when I lost everything I still thought I will trade again but I'll wait until the new year of 2017. -TL;DR- 2016- Young, like finance, made alot of money, lost all of it and plan to try again. First half of 2017- So during my trading in 2016 I had offered to alot of people at work that I would teach them or show them how to trade. At the time I really just wanted to have someone at work to talk about trading because all I really had was Reddit for Forex talk. So in 2017 I start up again and one of the Civilians I work with decides he wants to join me in trading (most military jobs have civilian slots where they do basically the same thing but get paid 2-3x more, in this case retired mil now civilian). So I help him get setup very excitedly because I finally have someone to talk about trading with he also says he will put in ~$200 to start with as well. So I think oh awesome I can teach you better since our accounts will be the same, so I trade by myself talking to let's call him Civ about trading consistently for about 3-4 weeks. One day suddenly Civ says "hey I put money into my account what are we trading today?" So obviously I'm like "awesome today I'm gonna trade this pair and I think it's a good setup" Civ says OK I put a trade in. So I go about my day and I don't see him until around the end of the day and our trade did go well, I had made about $45 on my at the time $130 account so I'm pretty happy at this point. So I see Civ and he's like super happy and this was our conversation Civ- "wow that was a good trade man" Me-"Yeah pretty good return for a day" Civ- "So how much did you make today?" Me- "I made $45 so like 40ish% pretty sweet" Civ- "man I made a little over $70,000" yes that is $70,000 Me- "....What the fuck? But how?" Civ- "well I kindof put in close to $75,000!" Me- "but even if you scaled up how did you make almost 100%?" Civ- "well I kindof just put in a trade as if I had $200,000 in the account, and then I did another one" So at this point I'm just completely blown away that he just made double what I make in a year in under 8 hours, but after the complete shock and awe wears off I'm legitimately happy for him because I helped in the trade but it definitely made my $45 feel like nothing. So to speed this story up what I just said above actually happens about 3 more times to the point where he makes over $140,000 thanks to the trades that I let him know about. But eventually I start to seriously resent him cause his true character starts to show in a series of events. First he starts to claim the trades were all his idea never even giving me credit, second he never even thanks me for helping him make 4 times as much as I get a year. Third he Basicly tries to rub it in my face a few times throughout this mess saying things like "you should put more money in so you can make more" or "just put half you paycheck in" which is pretty much impossible considering I'm a young E3 at the time and I don't have just money to blow. And fourth he tries to throw me under the bus multiple times for things I didn't do at work. Now here comes in Dirtbags 1 and 2 these two are the worst enlisted personnel I've ever seen but are basically protected by Civ he always stands up for them to higher ups and keeps them from getting in trouble by blaming others for there mistakes and they know this(They will be important later on). There is alot of icing on the cake as far as these 3 but I'm not gonna make this story any longer than it has to be. TL;DR- Help Civ make shitloads of money, Civ shits on me and starts a Sortof witch hunt after me, no longer trade with Civ. Civ in a nutshell- now this Summary of who Civ is isn't really important to the story(skip if ud like) but I felt a need to explain this guy so that people have an understanding of who I'm dealing with. Civ is Basicly a true narcissist he encompasses every meaning of the word. At work he chooses favourites and actively tries to ruin the careers of everyone that isn't his favourite and he's one of those people that laughs about everything he says, he does this so that he can decide based on your reaction if he wants it to be a joke or be serious since every "joke" is in a somewhat demeaning tone. He knows nothing about saving or investing in fact he actually gambles everyday via online poker or fantasy football, during football season hes openly said he gambles over $500 a day since he "wins quite frequently". He's a 45 year old man with a family and kids but he expects invites too all the house parties that people at work have and if he doesn't he has a legitimate hissy fit where I've seen him actually curse people out about how he will no longer invite anyone else to do anything with him(he doesn't do anything tho). He tries to be the guy at work thats "just so cool you gotta be friends with him" but there's a few of us who see straight through his lies and BS. TL;DR- Civ=Narcissistic man child with a gambling problem. Second half of 2017- So I no longer really talk to Civ we talk work related stuff here and there at this point I know he's very two faced and selfish so I avoid him because I can see straight through it. In around July we have a conversation about the up and coming Crypto currencies I tell him I don't really have any idea how to judge if they will keep going up or not. Supposedly Civ buys 0.30-0.40 a Bitcoin(BTC) not sure the price he got it at. Around this time he was pestering me for trades everyday which at this point I'd lost what I put in so I was no longer trading. But when I'd tell him that he took it personally kindof as if I owe him more trades(wtf right?) So I just basically ignore his asshole tones and go about my day. Around this time Civ gets out of Forex he tells me he withdrew over $240,000. Also tells me he never told his wife he made anything and that she thinks he only has like $2,000 in the account(more signs of a gambling addiction). FAST FORWARD to about 2-3 weeks ago- At this point I really don't care about Civ being ungrateful of all the money I've made him and in my life im getting hardcore into crypto currencies. I see BTC hit an insane high of over $18,000 and I see Civ the next day and ask about the BTC he bought he says he's still got it not paying attention to BTC at all tho so I tell him about it and how it could be a time to get out and get into something else so he says OK and that he will look into it. Next day Civ says hey I got out what should I do with it I want to keep it in Crypto, so I tell him about Litecoin and how it's cheaper and promising so he buys 55 Litecoin. (Why am I still helping this guy right? I have no idea) FAST FORWARD to this week- Litecoin explodes to $335 a coin when Civ got in at $90 a coin so he makes about $18,000. I'm pretty happy for him because I called another good investment even tho my little $350 crypto account hardly moved, at this point I don't expect anything from Civ because I expect he's still two faced. This time I actually show him the Litecoin price at work and he's super happy and actually thanks me so I'm like wow that's surprising. But then proceeds to tell co-worker's that he did this on his own (of course). Civ then asks me what he should do now. So at this point I just think well whatever I'm used to this and I'm never getting anything out of this so what's one last investment that I give him gonna hurt right? So I tell Civ about other altcoins on Binance.com and how he needs to get a Binance account to get to them instead of his Currently Coinbase account so he is like okay cool. NOW IT GETS FUCKING INTERESTING- so I tell Civ to get a Binance account and what Coins could be big here soon and he says he will make an account. Remember that Binance has a referral system going on and so I look into it and see that Binance would give me 50% OF WHAT HE DEPOSITS AS A REFERRAL REWARD AND IM FINALLY GONNA GET SOME SORT OF REWARD FOR ALL THE MONEY I'VE HELPED HIM MAKE AND IT WON'T COST HIM ANYTHING. It hits me like a freight train that if he uses my referral code I can get potentially $8,000 into my little coin account. I start to get excited BUT then remember who I'm dealing with so first I sent him my referral code and he says "cool no problem" then I start to think shit what if he forgets to put the code in so I text him again but this time IFU by saying "Hey if you have any questions let me know just don't forget to put in my Referral code cause I get free BTC lol" .....TIFU by showing a narcissist how to fuck someone over....AGAIN. So on the Binance referral page it shows you the first few letters of the person's email that used the referral and how much commission you have made from said person. Civ says he's going to make an account on Binance that night I say OK cool. That night my referral page gets one attached email that doesn't have letters I'm expecting so I'm kindof confused then I remember Civ is a 45 year old Neckbeard gamer so he likely had a wierd email address. No big deal, I see Civ next day at work and ask him how his account setup went (usually takes a few days) he says great and that DIRTBAG #2 also wants to get into crypto so he gave DB2 my referral code. .... Wait a minute the email attached to my account was actually DB2s because the first letters are his Initials of his name no doubt about it. But I don't think this is wierd at the time I carry on through out my week. UNTIL TODAY(Yes an actual TIFU) I see Civ at work (this is three days after he was supposed to setup his account and it still hasn't popped up on my referral list) and he says "I'm actually gonna not put money in to anything without doing research" this to me is wierd because for the last year he's made over $155,000 by literally doing no research and just listening to me. So I say cool whatever good idea. Meanwhile I'm also weirded out by how DB2 has not talked to me about crypto at all since using my referral code and he's been in this extremely happy mood lately so I'm like wtf is going on? Since I had taught DB2 Forex less than a year ago and he had the IQ of a house fly this strikes me as extremely odd compared to when I taught him last he wouldn't stop asking questions. BUT THEN IT HIT ME today when I got home I checked my referrals again because I was still pretty excited for $8,000 and how much it will help me and my wife with Christmas this year and then seeing that he hasn't popped up on the referral list it dawned on me. When I exposed that I would get free BTC to Civ he took it upon himself to have DB2 create an account on Binance and use my referral code so that I would think this was Civ meanwhile Civ put in DB2s referral code giving DB2 $8,000 and then he proceeds to lie to me. Going into investigative mode after calming down from an absolute rage I text DB2 knowing he literally knows Zero about crypto and my hypothesis being very very plausible I go to the weakest link directly and that's the low IQ DB2 and I start to talk to him about crypto first he says he has a Binance account with a bit of coins so I ask him what's next and he tells me he needs to get a coinbase account...... Which is Basicly the only way to put money into crypto so I ask him how he put money in before if he wasn't using coinbase and he says "I think it was Coinable.com" So I continue the conversation about crypto trying to get more of a clue of what Coins he owns he of course lists the exact list I gave Civ earlier that week . At this point I'm about 98% sure my hypothesis is correct and that I work with two of the most narcissistic people I've ever met. BUT THEN I get confirmation in the form of DB2 Being so clueless about crypto because he explains that he has "about 0.23 of BTC" which is roughly $4,000 which I know DB2 Does not have due to the fact that he recently totaled his 4th car this year. So Civ had DB2 create an account on Binance in order to give DB2 $8,000 in free money and to avoid giving me a single dime even tho I'm the one that's helped him make over $155,000 this year and then continues to lie to me thinking that I'm to stupid to figure this out. This is the single most fucked up thing I've ever personally seen happen to someone, and of course that someone is myself. Also to clarify the $8,000 does not come out of Civs pocket it comes out of Binances pocket as a thank you to getting people on their site so literally wouldn't cost Civ a dime. TL;DR(FULL) I help a narcissistic piece of shit make over $155,000 in a year and he avoids giving me anything in return at all at all costs. Now myself personally I made the mistake of putting myself in Civs shoes, you have a 21 year old guy at work that helps you make over a years salary and so I thought oh I'd totally being super appreciative and buy him lunch or maybe dgive him less than 1% of what he just earned you but this is where I really fucked up. In starting to put myself in his shoes I started to just completely resent Civ and everything about him because I started to feel like I deserve something. In the Forex community there are people who will trade your money for you or give you signals and those people can make lots of money either % returns of each trade or $ amounts for each signal. Looking back I shouldof come up with a Sortof contract after that first trade with Civ but at the time I didn't know what kindof person he really was. I'm posting it here because it's kindof a lesson I've now learned on not to trust people to be decent to you in return when it comes to investing/trading I've learned that as you guys have probably seen or know about how certain people get extremely inflated ego when it comes to trading/investing. And if your ever in a situation where you could make someone alot of money just do yourself a favour and draft a small document of how that person should give you about 10% of what they make. That alone should tell you what you need to know about the person is how they react to signing a contract like that. Take it from a practically broke Enlisted member who just made a well off guy way more cushioned.
Looking for advice on how best to buy and store bitcoin cash.
Hey guys, I am relatively new to crypto and I have been slowly buying a little btc here and there, but I don't want to put all my eggs in one basket and I like that bitcoin cash is trying to keep bitcoin along the original vision. I would like to buy some bitcoin cash, but I have only worked with coinable so far, and I am not sure how wallets work with different cryptocurrencies yet. Does every wallet that supports btc support bitcoincash as well? I still don't quite have my head wrapped around that part of it yet. I have been using bread wallet for my btc so far. Any advice/recommendations would be helpful. Thanks in advance!
I was wondering what the best Eth wallet was out there, being new to this. I have been warned away from Coinable because of fee's and being a little too restrictive on what you can do with your funds. So I was told go check out blockchain.info and I started an account but it appears they only do bitcoins! What is the best wallet out there with the lowest fee's, great security and easy to use?
So I'm pretty new looking to get/download a wallet and need help.... i wanted a ledger or a trezor but ledger is out of stock until aug 28th and tremor only accepts bitcoins which is fine but mine are on coinable which they do not accept...so i need a wallet that will support bit 148 and after much research I'm finding it hard to find clear answers... it seams bread wallet does not at the moment support bit 148 so I'm coming here for help, a safe secure iOS app would be preferable... any answers for a newb hodler?
I'm one of the dumb guys. I got caught up in the bitcoin hype and bought 1.6 bitcoins when the price was around $912. Not the best time by a long shot. Fast forward a few months and the price was really low as well as my confidence in decision making haha. I now want to get a little bit more active in the bitcoin world. I currently have my coins on Coinbase. My coins are stored in the vault. I recently bough a very small amount of bitcoins and noticed that it takes over 7 days to clear. I started looking up information on exchanges, but I feel I have more questions than answers now. 1) I see that Coinable has their own exchange. I have also read that kraken is a good exchange to use. Is one preferable to the other? 2) Lets say I am using GDAX and I think that the price is high and is going to drop over the next few weeks. I want to sell with the intention of buying more coins with the profits made from the sell when I think the price will climb again. Does that money get transferred to my bank account and then I have to pull from there again when I want to buy? Or is it saved on the exchange somehow so I can then buy back without the long waiting periods. 3)What if I think that the price is going to shoot up and I want the coins at the price I see now. Will the exchange lock in the price that I have bought the coins at or does it change when the transaction is approved? 4) With IRS trying to get more information on coinbase users should I not use coinbase to sell and only buy? 5) Lets say that I decide to use Kraken. How do I get my bitcoins over from my coinbase wallet to the kraken exchange and are they secure in that state? 6)I think that my 2nd question also applies to my 5th question. Sorry, if these are dumb questions. I am trying to get my head around a lot of new concepts.
Bitcoin news: Cryptocurrency plummets on Wednesday Oliver Isaacs, a Cryptocurrency investor, believes the cash coin bubble will eventually burst with massive consequences for investors. Brian Armstrong, the chief executive of the largest U.S. bitcoin and cryptocurrency exchange Coinbase and long time altcoin proponent, has warned it might not be bitcoin that pushes the ... Bitcoin Price (BTC). Price chart, trade volume, market cap, and more. Discover new cryptocurrencies to add to your portfolio. Skip to content. Prices. Products. Company. Earn crypto. Get $171+ Sign in. Get started. Price charts Bitcoin price. Bitcoin price (BTC) Add to Watchlist $ 13,070.01 +0.56%. 1h. 24h. 1w. 1m. 1y. all. $0.0000 January 1 12:00 AM. 10:56 AM 3:06 PM 7:17 PM 11:27 PM 3:38 AM ... Coinbase is one of the best known platforms both for buying and selling bitcoin, to exchange bitcoins for euros on this platform the following steps should be done: Have Bitcoin in the wallet; Sell Bitcoins to Fiat money. Make a withdrawal of the fiduciary money to a bank account by a transfer. Bit2me. In Bit2me it is possible to buy and sell bitcoin, regarding the sale it can be made through ... Current Bitcoin Price (in price order) - 07/Sep/2020 08am GMT . Blockchain.com $ 10079.43: Bitstamp $ 10081.27: Coindesk $ 10084.22: Bitfinex $ 10097.60: Click Here for a historical chart. Join our List. Get our once weekly email news and become a Crypto Insider. Email. Name Categories. Bitcoin Mining; Book Reviews; Current Investments; Forex/BTC Trading; Free Bitcoins; General Info; Initial ...
COINBASE TUTORIAL - [Buy and Sell BITCOIN EASILY!] - YouTube
#BTC #Bitcoin #Crypto Today Brian Armstrong Ceo of coinbase present you first and biggest crypto-airdrop Bullrun is here and with coinbase many surprises to ... Coinable adds bitcoin cash? Lets talk technical analysis. DISCLAIMER: This is NOT financial advice. I am just offering my opinions. I am not responsible for any investment decisions that you ... KW 38: Bakkt Bitcoin Futures Start heute! BTC Kurs IOTA News Coinbase, Libra & mehr 1:11 - Markt-Update 3:49 - Bakkt Start, Bitcoin ETF & Optionen 7:29 - Bitcoin News: Hashrate Rekord ... Interested in COINBASE and HOW TO BUY BITCOIN? Well this Coinbase tutorial will show you exactly how. Subscribe for more awesome videos and a chance at Free ... breaking news!!! proof bitcoin manipulated by binance and coinbase!! is $8'500 the target!!? PROOF BITCOIN MANIPULATED BY BINANCE AND COINBASE!! IS $8'500 THE TARGET!!?