Conclusion:
BTC deposit addresses will be generated as Taproot addresses with specific spending conditions. These conditions restrict transaction permissions to two entities: the MPC (Multi-Party Computation) address and a multisig (multi-signature) wallet tasked with overseeing liquidity. Each synthetic representation of BTC will have its own deposit address on the Bitcoin network.
We will register a separate resource for each synthetic BTC on the EVM side (separate resource ID).