Interesting. Definitely people have talked about this kind of approach before. A couple Qs: phase1 and phase 2 are disconnected at the network layer, right? so phase 2 A and B send a psbt with their i...
1. Yes, all phases are disconnected at the network layer.
2. Yes it's signed with SIGHASH ACP | ALL in phase 2
3. Yes they are linkable ring signatures
4. Phase 3 and 4 will only happen if one of the peers fails to register inputs
In phase 4 inputs are signed with SIGHASH ALL and new outputs.
2. Yes it's signed with SIGHASH ACP | ALL in phase 2
3. Yes they are linkable ring signatures
4. Phase 3 and 4 will only happen if one of the peers fails to register inputs
In phase 4 inputs are signed with SIGHASH ALL and new outputs.