Hashi Drags Bitcoin Back to DeFi, Promises No More Rug-Pulls This Time (Probably)

A fresh protocol named Hashi has just dropped on the Sui blockchain, aiming to make Bitcoin work for a living. It's already getting the institutional nod of approval from the usual suspects—BitGo, Bullish, and FalconX—who've promised to show up to the party when it officially launches later this year.

The core idea is simple: let Bitcoin holders finally earn some yield on their diamond-handed BTC through onchain lending and borrowing. It's targeting the tiny, almost embarrassing fraction of Bitcoin's total market cap that currently bothers to participate in DeFi, because let's be honest, most BTC is just sitting in cold storage, gathering digital dust.

Built primarily by Mysten Labs (the brains behind Sui), Hashi will start its life as a BTC-backed lending shop. The plan is for degens to borrow stablecoins against their precious sats, while the big-money institutions are expected to provide the initial liquidity—essentially becoming the protocol's sugar daddy at launch.

A Sui Foundation spokesperson framed this as solving Bitcoin's long-standing DeFi awkwardness, which has mostly involved sketchy intermediaries and collateral you just had to hope was actually there. The new system is all about onchain verification and programmatic collateral management, basically building a system institutions can trust without needing a blindfold. "We are replacing ‘trust me’ workarounds with onchain verification," the spokesperson said, a line that should be music to the ears of anyone who's ever been rugged.

Crucially, Hashi will let native BTC play in the onchain finance sandbox directly, bypassing the often-fragile world of wrapped or synthetic versions. This brings the holy trinity of transparency, automation, and collateral management to Bitcoin finance—the kind of boring, reliable infrastructure that gets TradFi suits excited enough to maybe, possibly, allocate some capital.

Right now, Bitcoin's involvement in DeFi is so minimal it's practically a statistical error. According to the onchain oracles at DefiLlama, a mere 0.22% of Bitcoin's total supply, worth about $3.07 billion, is actually deployed in DeFi protocols. The rest is presumably waiting for a higher number.

The rollout isn't just a solo act; it's got commitments from the crypto guard dogs—custodians and infrastructure providers like Ledger and Cubist. Sui-based DeFi protocols are also expected to jump in to offer lending, custody, and collateral management services once the platform goes live, creating a whole new ecosystem for your BTC to get rekt in, but more safely.

Under the hood, Hashi will use a blend of multi-party computation custody and Sui smart contracts to manage the collateral and run the lending show. Because nothing says "we learned from 2022" like planned audits and formal verification before letting anyone's money near the code.

The roadmap also teases features like insurance coverage for the BTC collateral and even ambitions to issue Bitcoin-backed bonds. The project is still in the oven, with a devnet expected soon and the mainnet launch penciled in for later this year—crypto time, so maybe Q4, maybe 2025.

The whole Bitcoin-backed lending scene took a massive credibility hit after the 2022 collapses of BlockFi and Celsius Network, which turned out to be houses of cards built on rehypothecation and risk management so opaque it was basically a black hole. User funds went in, and poof.

Lately, there's been a cautious, slow-motion crawl back toward Bitcoin lending. Regulators and companies are now flirting with models that prioritize things you'd think would be standard, like transparency, actual collateral management, and not having your counterparty vanish overnight.

In a sign that even the most traditional institutions are peeking into the crypto cave, the US Federal Housing Finance Agency told Fannie Mae and Freddie Mac in June to explore counting crypto like Bitcoin as borrower reserves for mortgages. It's a small step toward acknowledging digital assets without forcing a conversion into fiat first.

On the private side, builders are getting back to work. In June, Jack Mallers noted that Strike had updated its Bitcoin-backed loan terms to explicitly state user collateral sits in segregated wallets and isn't rehypothecated, adding the emphatic "never has been, never will be"—a direct shot across the bow of the old, reckless ways.

Not to be left out, Coinbase decided in January to reintroduce Bitcoin-backed loans for its US users. Eligible folks can borrow up to $100,000 in USDC against their platform-held BTC. They're part of a growing crew, including firms like Ledn,