What is Nostr?
fiatjaf /
npub180c…h6w6
2025-01-31 21:35:03
in reply to nevent1q…yg4w

fiatjaf on Nostr: The number is the double-sha256 hash of the block header. Part of that header is ...

The number is the double-sha256 hash of the block header. Part of that header is determined by what goes in the block, but a part of it is an arbitrary number that miners can change at will, the "nonce". Miners change that number a bazillion times and do the hashing again and again until the result of the operation is a number smaller than 10^15.

See https://learnmeabitcoin.com/technical/block/hash/
Author Public Key
npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6