OFICIAL Sui Blog

Hashi Testnet Is Live.

What happened
Based on Sui Blog · Jul 22, 2026

Sui has launched the Hashi testnet, enabling developers and institutions to build and test Bitcoin-backed financial applications using native BTC collateral. The Guardian Layer enhances security for institutional use, addressing tax concerns and operational risks.

🚩 Report a correction ↗ Open source
Hashi Testnet Is Live.
Sui Blog — Sui
Key points
·
Bitcoin has proven itself as the world's premier digital store of value, amassing over a $1 trillion market cap on that use case alone.
·
Alongside today's launch, Hashi presents the Guardian Layer, a new defense-in-depth security architecture purpose-built to help institutions securely manage Bitcoin collateral while preserving the transparency and programmability of onchain finance.
·
The Guardian Layer gives Bitcoin the defense it needs to finally go on offense, helping unlock lending, credit, yield strategies, and a new generation of institutional financial products on Sui.
·
While institutional adoption has accelerated through spot ETFs, corporate treasury strategies, and expanding regulatory clarity, more than a trillion dollars of Bitcoin remains largely dormant.
Key numbers
·
This marks a critical step toward unlocking over $1 trillion of dormant Bitcoin for transparent, programmable onchain markets.
·
The Hashi testnet introduces the Guardian Layer, a security architecture designed to protect Bitcoin collateral through a 2-of-2 multisig system requiring signatures from both Hashi validators and a guardian.

Sui has activated the Hashi testnet, providing the first infrastructure for institutions to build, integrate, and stress-test Bitcoin-backed financial applications before the mainnet launch. The platform enables native Bitcoin collateral management, allowing custodians, financial institutions, and developers to experiment with lending, credit, and yield strategies in a controlled environment. This marks a critical step toward unlocking over $1 trillion of dormant Bitcoin for transparent, programmable onchain markets.

The Hashi testnet introduces the Guardian Layer, a security architecture designed to protect Bitcoin collateral through a 2-of-2 multisig system requiring signatures from both Hashi validators and a guardian. This defense-in-depth approach helps institutions mitigate operational risks while maintaining the transparency and programmability expected in onchain finance. Fenwick, a leading digital assets law firm, has assessed that Hashi’s deposit and redemption processes should not trigger taxable events under U.S. law, addressing a key institutional concern.

Institutional adoption of Bitcoin has grown through spot ETFs and corporate treasury strategies, but the lack of infrastructure to safely deploy native BTC into credit markets has limited progress. Hashi aims to change this by providing the necessary tools for custody providers, wallet infrastructure, lending protocols, and capital markets participants to prepare for production-ready applications. Developers can access SDK documentation, integration guides, and technical resources at sui.io/hashi to begin building immediately.

Wave Digital Assets has committed to three years of efforts to tokenize Bitcoin-yield-bearing bond products on Sui using Hashi, signaling strong institutional confidence in programmable Bitcoin fixed-income markets. The ecosystem already includes major custodians, liquidity providers, and DeFi protocols, with over 20 partners pledged to deploy capital at launch. The testnet phase allows the broader financial system to shape Bitcoin’s evolution into a productive form of collateral, supported by technical documentation and testnet access configurations available at https://www.sui.io/hashi.

Original source → Deals on Clipraptor.com →