Sui’s Bitcoin-backed lending infrastructure, Hashi, still identifies Testnet as its available environment on November 7, 2026, after the Sui Foundation targeted a phased mainnet rollout for October. The project’s official product page says “Now on Sui Testnet,” while Sui’s developer documentation explicitly describes Hashi as live on Testnet. No subsequent official mainnet activation notice or verified live deposits was found during the publication check. A stale webpage is possible, so the absence of confirmation should not be mistaken for proof that no private integration exists.

The discrepancy matters because Sui’s October 8 announcement said more than $500 million in capital commitments had been secured from over 20 partners, including Anchorage Digital, ahead of an October launch. Committed capital is not the same as Bitcoin deposited, loans originated or balances verifiably locked on mainnet. The announcement did not specify an exact activation date.

Native Bitcoin becomes collateral through hBTC

Hashi aims to make BTC useful in Sui lending applications without sending the original coins onto the Sui blockchain. Instead, users deposit Bitcoin into protocol-controlled Taproot addresses on Bitcoin. Once verified, Hashi mints corresponding hBTC on Sui for collateralized borrowing or other third-party financial applications. Redemption burns the Sui-side asset and triggers a Bitcoin withdrawal. The developer workflow describes the deposit and withdrawal steps.

The design differs from a conventional exchange account but still transfers control of the deposited Bitcoin. According to the project’s documentation, a user does not retain a personal signing key to the Hashi deposit address. Normally, spending requires both the Hashi multiparty-computation committee and a separate Guardian signature. BitcoinVersus.Tech’s report on Bitget’s outside-custody network shows why separating asset location from actual signing authority matters.

A 60-day recovery path changes the trust model

The published Bitcoin address specification includes a second Taproot spending route: after a 60-day relative timelock, the Hashi committee alone can spend an eligible deposit UTXO without the Guardian. Engineers describe the route as recovery if the Guardian key is lost. It also means deposited coins are not solely protected by an unconditional two-party approval requirement forever. Bitcoin remains on Bitcoin, but key-control assumptions still matter.

The Hashi FAQ specifies a default 30,000-satoshi deposit and withdrawal minimum, six Bitcoin confirmations before deposit processing, and an additional committee approval and timing window. Withdrawals may be delayed by the Guardian’s rate limiter or network fees. The same FAQ warns that there is no legitimate $HASHI governance or airdrop token, making similarly named token solicitations a potential imitation risk.

Institutional commitments await measurable use

Anchorage plans to connect institutional clients through its Atlas tri-party collateral service and Porto wallet. Sui named partners including BitGo, Bullish, Cumberland, FalconX and Ledger. The company says Certora formally verified relevant smart contracts and CommonPrefix reviewed cryptographic components; such reviews reduce specific risks but are not guarantees against faulty liquidations, governance changes or custody problems.

BitcoinVersus.Tech recently covered Aave’s acquisition of fixed-rate lending technology and institutional tokenization of securities. Hashi is a different infrastructure proposal: Bitcoin collateral management across two networks, with separate lenders expected to build products on top. Credit and liquidation risks remain even if the base collateral remains on Bitcoin.

Actual hBTC issuance, Bitcoin deposit addresses, the amount of committed capital deployed and completed loan volumes remain the relevant tests. As Bull Bitcoin’s Payjoin integration illustrates, a Bitcoin product announcement and measurable live adoption are distinct milestones. Hashi’s next verified step requires an unambiguous mainnet notice and independently inspectable activity, not another projection of available liquidity.

Editor’s Note: As checked November 7, 2026, the official Hashi product page read “Now on Sui Testnet,” the developer reference stated that Hashi was live on Testnet, and the October 8 mainnet announcement targeted October without supplying a precise activation date. More than $500 million was described as partner commitments, not independently proven deployed collateral. Custody and recovery details come from the Bitcoin address specification and official FAQ. The March 23 Sui YouTube video explains architecture but does not document October deployment. Two images are from Sui Foundation publications, with their original dates stated. No mainnet deposit transaction, live loan, account eligibility, on-device workflow or actual video playback was independently verified.

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BitcoinVersus.Tech is not a financial advisor. Digital asset lending, Bitcoin collateral and financial infrastructure coverage is informational, not tax, legal, custody or investment advice.