📅 Original date posted:2018-05-09
📝 Original message:Johnson Lau <jl2012 at xbt.hk> writes:
> You should make a “0 fee tx with exactly one OP_TRUE output” standard, but nothing else. This makes sure CPFP will always be needed, so the OP_TRUE output won’t pollute the UTXO set
That won't propagate :(
> Instead, would you consider to use ANYONECANPAY to sign the tx, so it
> is possible add more inputs for fees? The total tx size is bigger than
> the OP_TRUE approach, but you don’t need to ask for any protocol
> change.
No, that would change the TXID, which we rely on for HTLC transactions.
> In long-term, I think the right way is to have a more flexible SIGHASH system to allow people to add more inputs and outputs easily.
Agreed:
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2018-April/015862.html
But in the long term we'll have Eltoo and SIGHASH_NOINPUT which both
allow different solutions.
Cheers,
Rusty.
Rusty Russell [ARCHIVE] /
npub1zw…hkhpx
2023-06-07 18:11:56
in reply to nevent1q…yle3
Author Public Key
npub1zw7cc8z78v6s3grujfvcv3ckpvg6kr0w7nz9yzvwyglyg0qu5sjsqhkhpxPublished at
2023-06-07 18:11:56Event JSON
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"content": "📅 Original date posted:2018-05-09\n📝 Original message:Johnson Lau \u003cjl2012 at xbt.hk\u003e writes:\n\u003e You should make a “0 fee tx with exactly one OP_TRUE output” standard, but nothing else. This makes sure CPFP will always be needed, so the OP_TRUE output won’t pollute the UTXO set\n\nThat won't propagate :(\n\n\u003e Instead, would you consider to use ANYONECANPAY to sign the tx, so it\n\u003e is possible add more inputs for fees? The total tx size is bigger than\n\u003e the OP_TRUE approach, but you don’t need to ask for any protocol\n\u003e change.\n\nNo, that would change the TXID, which we rely on for HTLC transactions.\n\n\u003e In long-term, I think the right way is to have a more flexible SIGHASH system to allow people to add more inputs and outputs easily.\n\nAgreed:\nhttps://lists.linuxfoundation.org/pipermail/bitcoin-dev/2018-April/015862.html\n\nBut in the long term we'll have Eltoo and SIGHASH_NOINPUT which both\nallow different solutions.\n\nCheers,\nRusty.",
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