Bitcoin full node and query server
Aug 16, 2018
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Mlmikael
05:02
where is there an authoritative source confirming that Bitcoin signatures are max 72 bytes indeed?
https://bitcoin.stackexchange.com/questions/12554/why-the-signature-is-always-65-13232-bytes-long
discusses this but only says "71 on average".
Bitcoin Stack Exchange
Why the signature is always 65 (1+32+32) bytes long?
A signature created by the Bitcoin-Qt client can always be decoded (base64) to a 65-byte array. This array seems (according to
https://github.com/bitcoin/bitcoin/blob/master/src/key.cpp#L217
) to co...