Constant revault_tx::scripts::SEQUENCE_LOCKTIME_MASK

pub const SEQUENCE_LOCKTIME_MASK: u32 = 0x00_00_ff_ff;

Flag applied to the nSequence and CSV value before comparing them.

https://github.com/bitcoin/bitcoin/blob/4a540683ec40393d6369da1a9e02e45614db936d/src/primitives/transaction.h#L87-L89