Author: Antoine Riard 2020-08-24 19:56:50
Published on: 2020-08-24T19:56:50+00:00
The email thread discusses the ability to skip a channel funding transaction confirmation, making the channel operational before its on-chain confirmation, known as a zero-conf channel. Different implementations support zero-conf channels in different ways, and these implementations have defined their own way of agreeing on a short_channel_id (fake one) before the transaction is confirmed. The proposed changes to the funding flow to support this include accepting a channel message in case the fundee wants to skip confirmation, sending funding_locked while the channel_id is derived using a convention agreed upon by both parties. One proposal for such convention is to take it from the temporary_channel_id provided in the previous open_channel message. A higher layer spec could gather specifications on other point-to-point Lightning programmable interfaces. With regards to unidirectional 0-conf, some wallets use a push_msat value payable once but it is a perfectly reasonable trust model.
Updated on: 2023-06-03T01:56:52.866153+00:00