Sui’s Hashi Bitcoin collateral network lines up more than $500M ahead of mainnet

Sui is about to ask Bitcoin holders a question they have heard many times before: what if your BTC did something besides sit there? This time the pitch comes with more than $500 million in committed capital. The Sui Foundation says that money is lined up for Hashi, its native Bitcoin collateral infrastructure, ahead of a phased mainnet rollout. The announcement came on October 8, 2026, at Sui Basecamp. The commitments come from a coalition of more than 20 partner organizations, and Anchorage Digital is one of the headline names. What Hashi actually does Hashi keeps native BTC on the Bitcoin network itself. Smart contracts on Sui coordinate how that Bitcoin gets used as collateral across lending, borrowing, credit, vaults and structured products. The system mints hBTC, a representation of Bitcoin on Sui. Holders can move between hBTC and native BTC through deposit and withdrawal mechanisms. Security rests on threshold cryptography, also known as multi-party computation (MPC). Each Sui address gets a 2-of-2 multisig arrangement, meaning two separate keys must sign off before anything moves. There is also a guardian rate-limiter layered on top. Its job is to cap how fast funds can flo...