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Subject: Re: [bitcoin-dev] Design for a CoinSwap implementation for
massively improving Bitcoin privacy and fungibility
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Good morning Chris again,
> For the avoidance of theft, it is probably better for Bob to wait for Ali=
ce-side funding tx to confirm, probably deeply because reorgs suck.
Over in Lightning-land, we have a concept called "irrevocably committed".
This is a state where a newly-created contract can no longer be cancelled, =
by publishing an older state.
In Lightning, there is a short timeframe where a new state, and its directl=
y previous state, are both still valid, until the previous state is revoked=
.
Only once the previous state (that does not contain the contract) has been =
revoked, and only the latest state is valid, can a forwarding node actually=
forward the payment.
This is roughly equivalent to the funding tx for the CoinSwap being confirm=
ed.
Until a transaction is confirmed, the UTXOs it spends (i.e. the previous st=
ate) can still be validly spent by other alternate transactions.
Regards,
ZmnSCPxj
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