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Bitcoin mining: how is a block header of 80 bytes processed in SHA-256? Isn't it too big?
The whole process of bitcoin mining was making sense to me until a moment of madness an hour ago, if there is 80 bytes of data to be processed in SHA-256, that's 640 bits of data to be processed in SHA-256. In this 80 bytes we have: 4 bytes (version), previous block hash (32 bytes), merkle root (32 bytes), time (4 bytes), bits (4 bytes), nonce (4 bytes). I thought SHA-256 accepted 512 bits of data, so that's 64 bytes of data. And on top of that, I need to add the length of the data to be processed in the last 64 bits of this 512 bits input but 64 bytes is well over the limit. What am I missing here? Can someone help hear it up for me? Thanks
Bitcoin mining is the process of adding transaction records to Bitcoin's public ledger of past transactions or blockchain. This ledger of past transactions is called the block chain as it is a chain of blocks. The block chain serves to confirm transactions to the rest of the network as having taken place. Free Bitcoin Mining Guide. Bitcoin Mining or Free Bitcoin Mining is the most important part of the bitcoin protocol. Without bitcoin mining, it is not possible to circulate new bitcoin in the market. In the beginning, you required a simple computer, but lots of things are changed in less than 10 years. Start Free Bitcoin Mining with Freemining. Fast, Secure, user-friendly and high-speed bitcoin mining platform. You can review bitcoin payment proof in our payout section. Free bitcoin mining is the most popular way of making money and getting richer. Freemining uses the latest technology and mining hardware to providing bitcoin mining free. How Bitcoin Mining Works. Before you start mining Bitcoin, it's useful to understand what Bitcoin mining really means. Bitcoin mining is legal and is accomplished by running SHA256 double round hash verification processes in order to validate Bitcoin transactions and provide the requisite security for the public ledger of the Bitcoin network. Bitcoin mining is the process by which new bitcoins are entered into circulation, but it is also a critical component of the maintenance and development of the blockchain ledger.
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