# Sui Launches Hashi Testnet to Transform Bitcoin DeFi Aiming to revolutionize Bitcoin finance with 25+ partners - **Source:** [CryptoNinjas](https://brifing.si/source/1b474a6a-b607-4f1e-8706-b192b0c6d750) - **Published:** 2026-07-22 - **Topic:** [Finance](https://brifing.si/c/finance) - **Original article:** - **On Brifing:** https://brifing.si/s/e138bb2a-754e-41c2-8bb1-bb5429de5bfc ## A New Step in Bitcoin DeFi The Sui Foundation has launched the Hashi testnet to advance Bitcoin-based decentralized finance (DeFi). This new infrastructure aims to transform Bitcoin from a passive store of value into productive collateral, addressing security and operational needs for institutional participants. ## Institutional Bitcoin Finance The Hashi testnet provides early access to develop lending, borrowing, yield, and credit products based on Bitcoin. It focuses on enabling programmable finance for Bitcoin while offering robust security measures for BTC collateral. ## Broad Partnership Network Over 25 partners are part of the Hashi testnet ecosystem, including custody providers, wallets, DeFi protocols, liquidity providers, insurance companies, and security auditors. This extensive network is poised to shape the future of Bitcoin finance. ## Security with Guardian Layer One of Hashi's key features is the Guardian Layer, which introduces a second level of validation for institutional Bitcoin collateral. The 2-of-2 multisignature mechanism ensures safer collateral transfers. ## Infrastructure for Bitcoin Credit Markets Despite growing institutional interest in Bitcoin, much of it remains underutilized due to a lack of financial infrastructure. Hashi aims to provide the necessary resources for developing Bitcoin lending, borrowing, settlement, and tokenized asset products. ## The Future of Bitcoin Finance The launch of the Hashi testnet marks a significant step toward widespread adoption of Bitcoin finance. Developers and institutions can test applications and workflows before the mainnet launch, paving the way for large-scale acceptance. ## Sources covering this story - https://www.cryptoninjas.net/news/sui-launches-hashi-testnet-to-unlock-1t-bitcoin-defi-with-25-partners-and-new-guardian-layer/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._