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4

Most mining pools use the stratum protocol. Part of this protocol includes a field for part of the extraNonce, named extraNonce1. The extraNonce is just extra data that is put in the coinbase transaction and used as a nonce in addition to the block's nonce. Each mining worker can then append their own extraNonce to extraNonce1. This second part is named ...


0

Im gonna cover from 0 to 500, and you cover from 500 to 1000, then if nobody find it we up 500 more Yes, the server coordinates this: The server SHOULD assign disjoint subspaces of the 8 byte nonce space to miners, avoiding the problem of multiple miners working on the same problem. And if they do use range does they tell it to other mining pool, so that ...


1

Private keys are 256-bit numbers. The first "HEX" you list has 64 characters, which corresponds to 256 bit, while the other two have 66 characters. Since all three share the same first 64 characters, I surmise that the library you're using simply drops the additional data beyond the first 256 bit.


1

In theory yes but the alien super computer would have to have hash power at an incredibly large multiple of the hash power pointed towards the Bitcoin blockchain today. According to blockchain.com today's network hash rate is around 130 million terahashes per second. If the alien super computer had more than this it could likely produce the next block with ...


2

It's not a valid working process: all transactions commit to the block hash. First of all a miner cannot "find a right hash" then insert a double-spend transaction. This would invalidate the hash (and the block, actually). For the same reason, a node receiving the block cannot malleate the coinbase transaction. It would not be able to "...


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