
The bridge, compatible with eight networks, seeks to make tBTC the institutional Bitcoin standard in DeFi and expand its footprint across the multichain market.
Threshold Network launched an upgrade to its tBTC bridge that allows financial institutions to use their Bitcoin in DeFi applications without withdrawing it from custody. The new system integrates directly with insured custodians, making it possible to issue tBTC — the tokenized version of BTC — without moving assets out of secure vaults.
With this new architecture, custodians, funds, and ETF issuers can mint tBTC in a single transaction without paying gas fees and instantly redeem it for Bitcoin. The bridge supports Ethereum, Arbitrum, Base, Polygon, Sui, Starknet, BOB, and Optimism, expanding its reach within the multichain ecosystem.
Threshold Network aims to establish tBTC as the institutional standard for Bitcoin in DeFi by offering interoperability with insured custody and regulatory compliance. Until now, most institutional BTC has remained idle due to regulations that restrict moving funds outside custodial environments.
Threshold Network currently holds $640 million in total value locked, ranking as the third-largest project in the Bitcoin DeFi ecosystem, behind Babylon Protocol and Lombard.

