[bitcoin-dev] BIP proposal: Anti-fee-sniping protection with nSequence in taproot transactions to improve privacy for off-chain protocols

Ben Carman benthecarman at live.com
Mon Jun 28 10:55:30 UTC 2021


> If nSequence is set it should apply only to the first input of the
transaction, if it has multiple inputs.

This could have complications with DLCs and dual funded lightning. In both protocols the ordering of the inputs is not know until both parties have revealed all of their inputs, and during the reveal the nSequence is given.  If we want DLCs and dual funded lightning to be compatible it would be better to have it define it as “at least one of the inputs of the transaction” instead of “it should apply only to the first input of the transaction”

benthecarman

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