I see the roughly two hour activation time for @BabylonLabs_io Trustless Bitcoin Vaults (TBV) as an intentional security tradeoff rather than a delay. As a crypto expert I think it reflects Bitcoin’s confirmation model instead of trying to force instant cross-chain behavior.
During the peg-in process the Pre-PegIn transaction locks signet BTC into the required Bitcoin side structure. The protocol then waits for 12 signet confirmations, which typically takes around two hours Meanwhile, off-chain participants complete the coordinated signing and acknowledgment process needed to build the vault’s predefined transaction graph.
Only after both requirements are satisfied can the vault be activated on Ethereum while the final Bitcoin side lock is established.
To me this is a strong example of designing around Bitcoin’s security assumptions instead of compromising them for speed. TBV acknowledges that Bitcoin and Ethereum operate in different execution environments, so collateral activation naturally follows a secure, verifiable sequence rather than an artificial instant settlement.
Although the public testnet uses assets with no monetary value, the experience helps users understand how native BTC collateral can move through an end to end DeFi lifecycle without ever leaving Bitcoin.