What Hash need for Signature verification?

Question

When miners verifies a transaction, they make some calculations to check its Signature by using some Hash.

What Hash is used for Sig verification in Bitcoin Core?

@Denis, the same hash that was used by transaction creator when he signed it. — amaclin, Oct 31 '17 at 17:35
@Denis, yes, but the process of calculating the hash is the same — amaclin, Oct 31 '17 at 18:43

score 0 · Answer 1 · answered Nov 01 '17 at 06:27

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I think that the hash function used is sha256d, a non-standard function obtained by hashing with sha256 twice (first hash the data, obtain 256-byte digest, then re-hash the digest).

answered Nov 01 '17 at 06:27

Charles Bouillaguet

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What Hash need for Signature verification?

1 Answers1