Statechains A statechain transfers ownership of a UTXO off-chain without moving funds on chain. Each transfer is signed by the current owner + a Statechain Operator (SO). Original concept: Ruben Somsen, 2018. Production impl: Mercury Layer by CommerceBlock. Mechanism A statechain UTXO is locked in 2-of-2 multisig with: - The current owner. - The Statechain Operator. To transfer: 1. Owner A reveals their key share to recipient B. 2. SO signs a new transfer message: "this UTXO now belongs to B". 3. SO publishes signed proof. 4. B confirms receipt; SO can no longer sign for A. Result: UTXO owner…