unable to turn off RBF for Timelocked txns

[yakitorifoodie]

unable to turn off RBF. Please fix it.

[ghost]

@panagiotos RBF is turned off by default. I was able to make transactions with and without RBF.
If you are still having an issue, could you explain with more detail?

[yakitorifoodie]

@Wowee0

RBF automatically turned off for normal txns but not for timelocked txn.

[yakitorifoodie]

i checked a timelocked txn by turning off and on RBF at https://live.blockcypher.com/btc/decodetx/ and it always shows "opt_in_rbf": true,.

[ghost]

@lizz-y Here's a timelocked transaction made by coinbin on BTC testnet, tx#7d89b9821776ad1fef7aeb508209b470a5219591714bb59dfb15e43846ce1757. Timelock script is "03c32818b1752103a51cec1cfe9844c9c3e9b536bea8edb22c1fef0af1b55b19dc197170a9e58567ac". The TX does not have RBF turned on.

Could you provide more information, and a testnet example, created by coinbin.

[edit] ok, I think I see what you are referring to, the transaction spending FROM a timelocked address are showing up as RBF=true, even if the RBF checkbox is unchecked. RBF is enabled when the sequence number is lower than 0xfffffffe.

• When spending from a OP_CHECKLOCKTIMEVERIFY address, coinbin sets the sequence number to 0x00000000 or 0xfffffffd (RBF off/on), instead it should set it to 0xfffffffe or 0xfffffffd (RBF = off/on).
• When spending a normal transaction, locktime=0, coinbin sets sequence to 0xffffffff or 0xfffffffd (RBF = off/on).

[ghost]

Documentation:

• https://medium.com/summa-technology/bitcoins-time-locks-27e0c362d7a1 - a good overview much more readable than the obtuse BIP documentation.
• https://bitcoin.stackexchange.com/questions/87372/what-does-the-sequence-in-a-transaction-input-mean - answer that comprehensively explores nSequence and how it has evolved since inception
• https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki - official spec OP_CHECKLOCKTIMEVERIFY.

[yakitorifoodie]

Thank you very much for addressing the issue.