Batch exchange withdrawal to lightning requires covenants
Posted by Bastien TEINTURIER
Oct 19, 2023/07:35 UTC
Yes, participants can double-spend the batch using a commit transaction that spends from the previous funding output. However, this should not be done for the splice transaction as it cannot be used for 0-conf. Participants must be aware of the possibility of double-spends and should watch for them while waiting for confirmations. It is recommended to use a reasonable feerate and nVersion=2 for this standard transaction.
TLDR
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