When asked, “What exactly is a hash, and why does blockchain depend on it?”
I usually answer like this: Bitcoin uses SHA-256 to calculate block hashes and transaction IDs, and it runs the calculation twice (double SHA-256). Proof of work works because hash results can’t be predicted in advance; the only way to find a hash that meets the difficulty target is to keep trying.
$BTC 75790 (-0.34%)
If you have anything to add, share it in the comments.
#BTC
I usually answer like this: Bitcoin uses SHA-256 to calculate block hashes and transaction IDs, and it runs the calculation twice (double SHA-256). Proof of work works because hash results can’t be predicted in advance; the only way to find a hash that meets the difficulty target is to keep trying.
$BTC 75790 (-0.34%)
If you have anything to add, share it in the comments.
#BTC