A digital fingerprint of the transactions stored in a block in a crypto blockchain. Block hashes also link blocks together. See cryptographic hash function and blockchain. THIS DEFINITION IS FOR ...

Mitchell Grant is a self-taught investor with over 5 years of experience as a financial trader. He is a financial content strategist and creative content editor. Erika Rasure is globally-recognized as ...

You know how geeky the cryptocurrency community is, when this is the trending hashtag on Twitter. This long sequence is a ‘block hash’ — a cryptographic number that is produced when new transactions ...

The average block size of the Bitcoin network peaked at 1.341 MB on May 2, with the mining hash rate approaching a new all-time high. The mean block size of the Bitcoin network peaked this month, with ...

Proof of work validates transactions on a blockchain by miners solving hash puzzles. Bitcoin uses proof of work, rewarding miners with coins for adding blocks. Proof of stake offers a less ...

Could an IBM mainframe from the 1960s mine Bitcoin? The idea seemed crazy, so I decided to find out. I implemented the Bitcoin hash algorithm in assembly code for the IBM 1401 and tested it on a ...