Cool. A nit on terminology. It isn't the scriptSig for SegWit and Taproot. It is the witness. More details here: https://bitcoin.stackexchange.com/questions/107872/what-are-the-scriptpubkey-scriptsig-redeem-script-and-witness-for-the-various
– Michael FolksonApr 14 '22 at 14:36
This transaction is listed as the first use of the Tapscript opcode OP_CHECKSIGADD, but I don't see it here. https://blockstream.info/tx/2eb8dbaa346d4be4e82fe444c2f0be00654d8cfd8c4a9a61b11aeaab8c00b272?expand
– HemphtaApr 14 '22 at 18:35
I want to understand the diff between an ECDSA multisig and a Schnorr multisig at the script level.
– HemphtaApr 14 '22 at 18:44
1
@liliaceae OP_CHECKSIGADD cannot occur in a scriptSig, as the opcode only exists in Taproot script spends, and those store the script in witness field, not in the scriptSig (which is only used for pre-segwit spends).
– Pieter WuilleApr 14 '22 at 23:55
@liliaceae: Please edit your question to update the scope of your topic as communicated in the comments, if you are still looking for an answer. If your question was answered by the linked questions, please vote to close as a duplicate.
– MurchApr 23 '22 at 19:12