"comment" and "to" of malleated transactions

I'm using the bitcoin core wallet and trying to build some programs around it. I see that comment and to can be added to transactions locally. If I understand it correctly, both are stored in local database and are not public information.

The question I have is whether this will help with malleated transactions. For example, if the transaction I initiated is changed a bit (still valid) and added to the blockchain, would the bitcoin core client attach the comment and to to the malleated transaction when I query for recent transactions?

Will Gu

Posted 2018-06-18T03:23:28.010

Reputation: 318

Answers

No, it would not because the malleated transaction is technically a different transaction. Transactions are identified by their hashes, not the inputs or the outputs of the transaction. Since malleating a transaction means that you are changing part of the transaction, its hash will also change. This means that the malleated transaction is actually a different transaction and will be treated as such. So no local information from the original transaction will be added to the malleated transaction unless you explicitly add it.

Andrew Chow

Posted 2018-06-18T03:23:28.010

Reputation: 40 910

Actually, I believe some metadata is copied to malleated transactions. – Pieter Wuille – 2018-06-18T08:10:37.263