Anchorage Digital will be among the first companies to connect to Hashi when Sui switches on its Bitcoin finance network later this month, giving companies that already hold bitcoin on their books two routes to unlock liquidity without having to sell their holdings.

Sui announced the integration at its Basecamp 2026 conference in Singapore on Thursday, according to Sui's official announcement. The Hashi mainnet will open in stages, with access widening as more partners complete their integrations.

Atlas for qualified custody, Porto for hedge funds

Which route a client chooses comes down to how strictly it is regulated. According to Sui, public companies and digital asset treasury firms may not currently be able to interact directly with DeFi, so their bitcoin flows through Anchorage's Atlas system — a three-party collateral and settlement arrangement designed to ensure the assets remain in qualified custody.

Porto serves everyone else. Sui says hedge funds, crypto venture funds, miners, market makers, and liquidity providers can link Anchorage's self-custody wallet directly to Hashi, letting them pursue lending, yield, or real-world asset strategies.

Anchorage describes itself as the first crypto bank in the United States to be chartered by the federal government. The company also intends to add stablecoin liquidity to the network.

"Public companies and institutions hold enormous amounts of Bitcoin, but their ability to use that capital has been constrained by the technology available to them and the limitations of the DeFi space," said Nathan McCauley, Anchorage's chief executive and co-founder.

More than 20 companies pledge $500 million ahead of mainnet launch

More than 20 companies have pledged more than $500 million to support the launch, including BitGo, Bullish, Cumberland, FalconX, and Ledger. Those figures remain commitments for now; Sui has not disclosed how much of that money will actually sit in Hashi contracts on day one. Whether those commitments convert into deposits once the staged rollout begins will be one of the clearest early tests of the network's traction.

The Hashi framework was developed by Mysten Labs, the original contributor behind the Sui blockchain. A global testnet has been up and running since July 22, following an earlier phase that ran solely on a devnet.

Bitcoin deposited into Hashi stays on the Bitcoin network. Against it, hBTC is minted on Sui, where it can be deployed in lending markets, credit products, vaults, and structured products. Withdrawals reverse the process: the hBTC is burned and the original coins are released. Sui says more than $1 trillion worth of bitcoin sits largely unused because institutions lack tools with the controls they require — a gap Hashi's deposit model is built to address, keeping the underlying coins in place while making them usable on Sui.

Withdrawals require sign-off from two parties. Deposits are protected by a 2-of-2 multisig, meaning both Hashi's validators — which sign through multi-party computation — and a separate Guardian Layer must agree before any BTC leaves. The Guardian Layer can also slow or halt transfers that appear suspicious.

Hashi's smart contracts were formally verified by Certora, while CommonPrefix reviewed the security underpinning its MPC protocol. Sui also cites an opinion from the law firm Fenwick, which concluded that Hashi deposits and redemptions should not count as taxable events under US law — though a law firm opinion differs from an IRS ruling.

With the mainnet opening in stages, the near-term markers are concrete: which partners finish their integrations, when access widens beyond the first cohort, and whether Anchorage follows through on its stated plan to bring stablecoin liquidity to the network.

At the same conference a day earlier, Sui pushed 40.6 million transactions per second through a test verified by CertiK, as Cryptopolitan reported. Separately, Phantom said in August that it would stop supporting Sui after the chain's DeFi total value locked dropped below $1 billion, according to a prior Cryptopolitan report.