Let's talk about hash functions:
Bitcoin uses SHA-256 to calculate block hashes and transaction IDs, and runs it twice (double SHA-256).
The block header stores the hash of the previous block. Changing any historical block changes its hash, so all subsequent blocks will no longer match.
$BTC 82704.01 (-0.53%)
#BTC
Bitcoin uses SHA-256 to calculate block hashes and transaction IDs, and runs it twice (double SHA-256).
The block header stores the hash of the previous block. Changing any historical block changes its hash, so all subsequent blocks will no longer match.
$BTC 82704.01 (-0.53%)
#BTC