Hashi Testnet Brings Bitcoin Collateral Experiments To Sui

Trusted Editorial content, reviewed by leading industry experts and seasoned editors. Ad Disclosure Hashi has launched a testnet on Sui, giving developers a sandbox for a Bitcoin-backed lending design that uses native BTC collateral and a Guardian Layer security model. The protocol’s GitHub materials describe a system built around multi-layer transaction security, including MPC threshold signatures and a 2-of-2 multisig flow between validators and independent guardians. That sounds technical, and it is, but the goal is easy to understand: bring Bitcoin into Sui-based DeFi without pretending that cross-chain BTC collateral is simple. Bitcoin is the largest crypto asset, but using it in DeFi normally requires wrappers, bridges, custodians, or synthetic representations. Hashi is trying to build a more structured way for BTC to support lending on Sui, while keeping additional checks around transaction security. The main thing to remember is that this is a testnet, not a mainnet product holding real user BTC at scale. TL;DR Hashi has launched a Sui testnet for Bitcoin-backed lending infrastructure. The design includes a Guardian Layer, MPC threshold signatures, and 2-of-2 multisig contr...