If I know the m of n values of the multisig, the # of inputs (all of which are from the multisig and require m signatures) and outputs and the redeem script, how can I determine the size of the transaction after m signatures?
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@JBaczuk there doesn't seem to be an accepted answer there, nor does the existing answers fully provide an answer. – tipu Dec 22 '18 at 00:39
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@tipu to me it seems that the voted answer in the other question fits and answers your question. It assumes that `p2sh-multisig` is being redeemed, all pubkeys are compressed (33 bytes per pubkey) and that the signatures produced are 72 bytes each. If you're asking about segwit specifically (the calculation will be a bit different in that case), then please edit your question. Otherwise I agree that it's a duplicate. – arubi Dec 22 '18 at 09:05