Chorus One Staking: Who Runs It, Networks, Fees and the Bitwise Deal

Chorus One is now part of Bitwise

Bitwise announced on February 24, 2026 that it had acquired Chorus One and would fold it into Bitwise Onchain Solutions, its staking division for institutional investors, family offices and financial platforms, according to the Bitwise press release. Price and other financial terms were not disclosed. The release says the core team, about 50 technical staff, joined Bitwise, and co-founder Brian Crain moved to an advisory role.

For existing delegators, the practical change is contractual. Chorus One's terms of service, updated March 18, 2026, now name the provider as "Chorus One AG, doing business as Bitwise Onchain Solutions," a Swiss company. The chorus.one website carries a notice that the company is now part of Bitwise; delegators who want to confirm that a specific validator is unchanged can check it on the relevant network's explorer.

What Chorus One offers

Chorus One sells validator operation in several forms:

• Enterprise staking: custodians, exchanges, funds and ETF issuers delegate to Chorus One validators and receive reporting.
• White-label validators: Chorus One runs nodes under a client's brand.
• OPUS: its Ethereum staking platform, offering a pooled vault with no minimum, dedicated validators for multiples of 32 ETH with an account manager, private vaults and an SDK for companies adding ETH staking to their own apps.
• MEV Max vault: a pooled ETH staking product designed to capture extra rewards from block building (maximal extractable value, explained in OBOL's MEV guide).
• Public nodes and research: RPC endpoints and published protocol research.

The website also mentions Chorus Ventures, described as a $30 million investment fund.

Supported networks

The Bitwise release lists more than 30 networks, naming Solana, Hyperliquid, Monad, Avalanche, Sui, NEAR, Aptos, Tezos and TON, alongside Ethereum through OPUS. The chorus.one homepage is inconsistent, citing "30+" in its body and "50+" in its page description, so the 30+ figure is used here. For an individual network, the authoritative check is the network's own validator list or explorer, which shows whether a Chorus One validator is active and its current commission.

How ETH staking with Chorus One works

Through Ledger Live. Since June 25, 2025, Ledger Live users can stake and unstake ETH with the MEV Max vault from the app's Earn and Discover sections, Chorus One announced. As with other Ledger Live actions, transactions are approved on the Ledger device. At launch, the osETH liquid staking token was listed as a planned addition rather than an available feature.

Through OPUS. At opus.chorus.one, a user connects a wallet and deposits into the pooled vault. The pool can mint osETH, a liquid staking token created through StakeWise, which can then be restaked on EigenLayer. Each step adds a layer: the vault contracts, StakeWise's osETH and, if used, EigenLayer's restaking rules. OBOL's guides to liquid staking and restaking explain the trade-offs.

Exiting. Unstaking ETH is not instant: withdrawals pass through Ethereum's validator exit and withdrawal process, whose length depends on network demand. osETH holders can instead sell the token on the market, at whatever price it trades.

What it costs

On OPUS, Chorus One states a 5% commission on staking rewards, as of October 2026. Commission is taken from rewards, not from the staked principal. On other networks, the validator's commission is set per network and is visible onchain or in the network's staking interface; Chorus One does not publish a single cross-network fee table. Institutions negotiating enterprise or white-label terms receive custom pricing that is not public.

Network transaction fees for deposits and withdrawals are separate and paid to the blockchain.

Risks to weigh

Slashing. Proof-of-stake networks can penalize validators for double-signing or downtime. Chorus One's terms define slashing and state that Bitwise is "not responsible in any way" for network failures to pay rewards, including slashing. They also cap aggregate liability at the fees a user paid in the prior six months, or $10,000 if no fees were paid.

Non-custodial does not mean risk-free. The terms state that the company cannot take custody of user assets or access private keys. Delegators still depend on validator uptime, on the smart contracts of any vault they use, and on their own key security.

Restaking exposure. The terms warn that restaking can expose users to additional slashing or loss.

Reward variability. Staking rewards depend on network issuance, total stake and, for MEV Max, block-building revenue. Past reward rates do not set future ones. OBOL's explainer on how staking works covers these mechanics in general.

Who operates Chorus One

Chorus One AG is a Swiss company. Its entry in the Global Legal Entity Identifier register lists Baarermattstrasse 6, 6340 Baar, Switzerland, as both legal and headquarters address. Disputes under the terms are governed by Swiss law, with arbitration seated in Dublin for European users and in Switzerland or Singapore for others.

Support and official channels

Delegators can submit a request through the help center at support.chorus.one. The help center warns that genuine emails come only from addresses ending in @chorus.one. Never share a seed phrase with anyone presenting as support; Ledger Live users with app issues should contact Ledger.

Official channels, as linked from chorus.one:

• Website: chorus.one/
• X: twitter.com/chorusone
• LinkedIn: linkedin.com/company/chorus-one/
• YouTube: youtube.com/@ChorusOne
• GitHub: github.com/ChorusOne
• Telegram: t.me/chorusone
• Discord: discord.gg/C3J8kwAtDF

OBOL assesses the service separately in OBOL's Chorus One review; other providers appear in the staking ratings.