TheBlock
Umbra and Streamflow have launched private token vesting on Solana, letting projects vest and distribute tokens confidentially at scale. Powered by Arcium's encrypted execution engine, the integration preserves Streamflow's full suite of time-based locks, price-based conditions, and other distribution mechanisms — while keeping the actual token transfers shielded from public view.
Recipients receive vested tokens directly into Umbra wallets, with each new vesting schedule feeding into Umbra's shared anonymity pool and strengthening privacy for every user and application on the network. Umbra founder Kru Shah called it "a landmark moment for the industry."
The structural case is hard to dismiss: in 2025 alone, roughly $97 billion in tokens were released through vesting and unlock schedules, nearly all of them fully public and traceable on-chain.
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