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Update 6_4_Sending_a_Transaction_with_a_Locktime.md

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Shannon Appelcline 2017-05-26 11:42:06 -07:00 committed by GitHub
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6_4_Sending_a_Transaction_with_a_Locktime.md
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@ -99,6 +99,8 @@ $ bitcoin-cli -named decoderawtransaction hexstring=$rawtxhex
``` ```
Note that the sequence number (4294967294) is less than 0xffffffff. This is necessary signalling to show that the transaction includes a locktime. It's also done automatically by `bitcoin-cli`. If the sequence number is instead set to 0xffffffff, your locktime will be ignored. Note that the sequence number (4294967294) is less than 0xffffffff. This is necessary signalling to show that the transaction includes a locktime. It's also done automatically by `bitcoin-cli`. If the sequence number is instead set to 0xffffffff, your locktime will be ignored.
> **SEQUENCE NOTE (II):** This is the second use of the `nSequence` value in Bitcoin. As with RBF, `nSequence` is again an opt-in, here to the use of locktime. 0xffffffff-1 (4294967294) is the preferred value for signalling locktime because it purposefully disallows the use of both RBF (which requires `nSequence < 0xffffffff-1`) and relative timelock (which requires `nSequence < 0xf0000000`), the other two uses of the `nSequence` value. If you set `nSequence` lower than `0xf0000000`, then you will also relative timelock your transaction, which is probably not what you want.
> **WARNING:** If you are creating a locktime raw transaction by some other means than `bitcoin-cli`, you will have to set the sequence to less than 0xffffffff by hand. > **WARNING:** If you are creating a locktime raw transaction by some other means than `bitcoin-cli`, you will have to set the sequence to less than 0xffffffff by hand.
## Send Your Transaction ## Send Your Transaction