The game theory of just-in-time channels could be improved using fraud proofs: proofs that a LSP stole funds instead of opening a Lightning channel. The difficulty lies with the requirement for the proof to be public, without having to trust the victim. To solve this, we propose to use the blockchain as an arbitration layer. This results in a protocol where client and the LSP do not need to trust each other.

Full article: https://delvingbitcoin.org/t/proposal-public-fraud-proofs-for-just-in-time-channels/2451