@cat9527
Since it is an off-chain solution, it must have two modules: "on-chain + off-chain"
1.On the chain, it uses the concepts of "pre-signature" and "shared UTXO" to achieve the ability to lock funds and unilaterally exit, which is similar to On the chain, it uses the concepts of "pre-signature" and "shared UTXO" to achieve the ability to lock funds and unilaterally exit, which is similar to On the chain, it uses the concepts of "pre-signature" and "shared UTXO" to achieve the ability to lock funds and unilaterally exit, which is similar to buildonspark