BIPinformationalopcodesscriptsigning

[BIP78] Recommended fee rate estimation for P2TR

Non-Witness: Outpoint size = 32+4 Sequence size = 4 ScriptSig VarInt Size= 1 Witness: WitScript VarInt Size= 1 Then script itself: 65 signature size + 1 byte of push opcode `(32 + 4 + 4 + 1) + (65+1+1)/4=57.75`, rounded up `58`. We assume 65 of signature size rather than 64, since we can't assume the sighash to be `Default`.

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NicolasDorier·Updated Sep 1, 2021·0 reviews·0 attestations·View source

Collections:BIPs — Merged

Specification

Non-Witness:

Outpoint size = 32+4 Sequence size = 4 ScriptSig VarInt Size= 1

Witness:

WitScript VarInt Size= 1 Then script itself: 65 signature size + 1 byte of push opcode

(32 + 4 + 4 + 1) + (65+1+1)/4=57.75, rounded up 58.

We assume 65 of signature size rather than 64, since we can't assume the sighash to be Default.

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