Coinbase announced support for staking on Sui (SUI) this week, letting eligible customers earn rewards directly from the platform. Separately, the Sui Foundation launched the Hashi testnet, a developer and institutional platform focused on Bitcoin infrastructure. The moves come as the Sui ecosystem continues to expand its reach beyond its core layer-1 network.
Coinbase Staking for SUI
Coinbase said eligible customers can stake their SUI tokens and earn rewards without leaving the exchange. The feature is rolling out to users who meet the platform's standard eligibility criteria. Staking lets holders put their tokens to work securing the network while earning a yield — a common offering on proof-of-stake chains. Sui uses a delegated proof-of-stake model, so Coinbase will handle the technical side of delegation on behalf of its users.
The timing isn't accidental. Sui has been gaining traction since its mainnet launch, and adding staking support on a major exchange like Coinbase gives retail investors a straightforward on-ramp. It also brings Sui into the same staking lineup as Ethereum, Solana, and other assets Coinbase already supports.
Hashi Testnet Targets Bitcoin
On the same day, the Sui Foundation unveiled Hashi, a testnet built for developers and institutional partners working on Bitcoin infrastructure. The name suggests a bridge or interoperability play — Hashi means “bridge” in Japanese. The testnet is live now, though the foundation hasn't said when a mainnet version might arrive.
Hashi is aimed at teams building tools that connect Bitcoin's ecosystem to Sui's high-throughput environment. That could mean anything from Bitcoin-based DeFi to custody solutions or cross-chain messaging. By targeting Bitcoin infrastructure, Sui is positioning itself as a layer that complements rather than competes with the original blockchain.
What the Two Announcements Share
Both moves are about expanding Sui's footprint. Staking on Coinbase brings Sui to a broader retail audience. Hashi opens the door for institutional and developer projects that want to build Bitcoin-adjacent services on a faster, cheaper network. Together, they show Sui trying to cover both ends of the market: the individual holder and the infrastructure builder.
Neither announcement included specific reward rates for staking or a detailed roadmap for Hashi. The Hashi testnet is open now for developers to experiment. Coinbase's staking feature is being enabled for eligible customers in phases. What comes next — whether Hashi graduates to mainnet or Coinbase expands staking to more regions — will depend on how these early steps play out.
