Sui Hashi mainnet Lands This Month With $500M Committed

Sui Hashi mainnet is coming this month, and it shows up with a fat number attached. At Sui Basecamp 2026 on October 8, Sui said its native Bitcoin finance layer will start a phased mainnet rollout later in October, backed by more than $500 million in capital commitments and a launch coalition of more than 20 partners. Anchorage Digital is the newest day-one name.

What actually happened

The Sui blog post says Hashi mainnet "will go live later this month" in a sequenced rollout. Access opens progressively as launch partners finish their integrations, from institutional custody desks to retail wallets. In other words, not everyone gets a button on day one.

Cointelegraph's write-up names some of the coalition: BitGo, Bullish, Cumberland, FalconX and Ledger. Aftermath, Concrete and Fluid are listed among the providers expected to run Hashi vaults. Sui says more than 20 partners have joined since Hashi was first unveiled.

The pitch is aimed at big balance sheets. Sui argues that more than $1 trillion in Bitcoin sits largely idle, because institutions and public companies holding BTC have lacked a compliant way to use native coins in programmable markets.

How Hashi works

Bitcoin stays on the Bitcoin network. When BTC enters Hashi, hBTC is minted on Sui against that deposit and can move across apps. When a user exits, the hBTC is burned and native BTC is released back on Bitcoin.

Security is layered. Sui says BTC collateral sits behind a 2-of-2 multisig that needs both Hashi validators and a guardian. A Guardian Layer can slow or stop suspicious withdrawals. The smart contracts went through formal verification by Certora, and CommonPrefix reviewed the MPC protocol's cryptography.

Sui also cites a view from law firm Fenwick that Hashi deposits and redemptions should not count as taxable events under US tax law. That matters for treasury companies, though it's a legal opinion relayed by the project, not a ruling. Hashi's framework was built by Mysten Labs, and third parties build the actual financial products.

"Hashi is launching with serious capital," said Mysten Labs co-founder Adeniyi Abiodun.

Anchorage and the institutional angle

Anchorage Digital will open Hashi to clients through Atlas, its settlement and tri-party collateral setup, and through Porto, its self-custody route. The tri-party path targets public companies and digital asset treasuries that can't touch DeFi directly today.

Anchorage CEO Nathan McCauley told Cointelegraph that institutions hold huge amounts of Bitcoin but have been held back by the tech available to them. That's the whole thesis: turn long-term BTC holdings into working collateral without selling.

The fine print on Sui Hashi mainnet

The $500 million is a capital commitment figure, so don't read it as TVL on launch day. Live numbers will depend on how fast partners integrate and how much BTC actually gets deposited. Hype accounts posting throughput claims on X don't change any of that.

Bridged or wrapped BTC models have a long history of failing in ugly ways, so the guardian design and audits deserve scrutiny once real money flows. A phased rollout also means early liquidity may be concentrated in a handful of partner vaults.

Markets are watching. On Kraken at 06:04 UTC on October 9, SUI traded near $1.066, inside a 24-hour range of roughly $0.99 to $1.14. Bitcoin itself sat near $82,356 after a choppy week, as covered in our Bitcoin $80K dip odds piece.

What to do as a reader

Follow official channels for the Sui Hashi mainnet go-live, specifically the Sui announcement and each partner's own docs. Ignore "early hBTC" links from random accounts, because phishing loves a launch week.

If you plan to use Hashi vaults, check which partner runs each vault, its risk parameters and how fast you can exit. Start small while the rollout is in its first phase. For another recent DeFi plumbing story, see our breakdown of the Orca and Loopscale merger. Our 3x Bitcoin ETF note covers another way Wall Street is packaging BTC exposure. Nothing here is investment advice.