SSV Network

A validator tied to one setup can miss duties when that setup fails, while naive duplication risks conflicting signatures. The Ethereum Foundation conceived the SSV/DVT approach in 2019; Blox and Ethereum Foundation contributors later developed Secret Shared Validators as a public implementation, and the wider field adopted the name Distributed Validator Technology.

The design divides only the validation signing key. Each operator receives one encrypted share; the staker keeps the withdrawal key. Consensus chooses the duty and a threshold of partial signatures produces the validator signature without reconstructing the complete key.

The first public testnet arrived in 2021. Primus opened incentives on 24 January 2022, and the project later counted 10,000 validators and 1,066 operators. Shifu added token and operator management; Jato in March 2023 was the final rehearsal.

Mainnet started in July 2023 as a controlled sequence: team infrastructure, 20 verified operators, launch partners and finally permissionless participation in December. The gates were temporary rollout controls, not the lasting operator-selection rule.

Clusters support 4, 7, 10 or 13 operators. Under 3f+1, those sizes tolerate 1, 2, 3 or 4 faults; common signing thresholds are 3-of-4 and 5-of-7. Diversity across operators and clients is therefore part of the security claim, not decoration.

The margin can shrink. Current code permits reactivation while removed operators are skipped, so a nominal four-member cluster may continue with three. Replacing operators generates new key shares but does not revoke old ones: an old set remains valid whenever its signing threshold is met. The current guide therefore warns against replacing more than two operators in a cluster.

On 20 April 2026, the mainnet proxy activated v2. New clusters pay both operator and network fees in ETH. Charges follow effective balance, so a post-Pectra validator with 2,048 ETH costs more than one at 32 ETH. Operators choose fees within bounds, while the DAO owner can change the network fee, bounds and liquidation settings.

Old SSV-denominated clusters cannot continue ordinary management on the legacy path. Migration refunds unused SSV, accepts ETH and cannot be reversed. An owner who supplies too little ETH can still face liquidation; moving the fee asset does not remove solvency risk.

SSV began through a 100 CDT to 1 SSV migration and remains mintable by its DAO Safe. v2 added another layer: staking SSV mints transferable cSSV 1:1. Holders share ETH network fees and retain configured governance weight; unstaking enters a seven-day cooldown.

The reviewed protocol documentation describes cSSV as a receipt for staked SSV and a share of ETH network fees. cSSV is not the ETH locked by validators and its rewards are not Beacon Chain staking rewards. Four permissioned effective-balance oracles currently need 75% support, while the DAO Safe can replace them, alter quorum and upgrade modules. The economics are on-chain, but the control plane remains governed. Official organizational history describes SSV Labs, formerly the core team, as one contributor and the SSV Foundation as the DAO’s real-world arm. Holding SSV or cSSV does not by itself confer equity in either entity.