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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
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 done by private computers. The role of miners is to secure the network and process each Bitcoin. Miners do this by solving a calculation problem that allows them to assemble the transaction blocks (hence bitcoin's famous blockchain). Miners for this service are rewarded with newly created Bitcoins and transaction fees. The Bitcoin.com mining pool has the lowest share reject rate (0.15%) we've ever seen. Other pools have over 0.30% rejected shares. Furthermore, the Bitcoin.com pool has a super responsive and reliable support team. The result of “bitcoin mining” is twofold. First, when computers solve these complex math problems on the Bitcoin network, they produce new bitcoin, not unlike when a mining operation extracts ... The Bitcoin mining operation is performed in an environmentally friendly way, protecting our planet, while still generating a healthy return to Bitway token holders. We stand for the distribution of 21m Bitway (WAY) tokens and have a long-term goal of creating a decentralized mining platform.
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