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When a transaction is pushed directly to a miner does it check whether the transaction is segwit or not or only if it is valid?
Do miners check whether a transaction is segwit or non segwit?
Answers
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The miner only determines if it is valid. Miners do not, in a sense, "discriminate" between Segwit or Legacy.
I think legacy miner(pre-segwit) needs to distinguish between anyone-can-spend transactions and legacy transactions for the simple reason that they can't validate segwit transactions. – sanket1729 – 2018-03-28T08:36:15.447
@sanket1729 No, by definition they can't, as they don't even know about the existance of segwit. All they see is a weird but valid output that anyone can spend. They're not aware of the new rules that do not make them so trivial. – Pieter Wuille – 2018-03-31T04:55:07.553
@PieterWuille, should there not be any policy in the legacy miners to not include transactions which contain anyone can spend outputs since they cannot risk creating an invalid block? – sanket1729 – 2018-04-01T11:41:01.340