From Marble Layer 2 to Bitcoin

In addition to the deposit service program, the execution node of Marble Layer2 also embeds an withdrawal service program. Once it identifies a successful execution of a withdrawal transaction request from a user address to a threshold public key address (with the relevant tokens already burned) and the Marble Layer2 consensus committee has generated the corresponding signature for this withdrawal transaction on Bitcoin, the withdrawal service program will send this transaction to the Bitcoin network to facilitate the withdrawal for that user.

BTC——BTC

ERC20 tokens——Inscriptions

ERC721 tokens——NFT Inscriptions