Umbra, Streamflow Launch Private Token Vesting on Solana

Umbra and Streamflow have launched encrypted token vesting on Solana (SOL), giving projects a way to distribute locked tokens without publicly exposing recipient wallets, unlock schedules or allocation sizes. The integration is powered by Arcium's encrypted execution engine and connects Umbra's privacy layer with Streamflow's token distribution platform. According to the companies, roughly US$97 billion (AU$134.83 billion) in tokens were released through vesting and unlock schedules in 2025, with most of that activity fully visible onchain. The new integration lets teams keep using time-based locks, price-based conditions and other vesting mechanisms while making the actual transfers confidential.

How Private Vesting Works

Public vesting allows traders to monitor recipient wallets, upcoming unlocks and allocation sizes, then position ahead of expected selling or liquidity changes. Umbra's design sends vested tokens directly into Umbra wallets. Each new vesting schedule contributes to a shared anonymity pool, which the teams say strengthens privacy for users and applications building on the network. The integration applies confidentiality to a recurring institutional workflow where teams, investors and contributors often receive tokens under predictable schedules.

Streamflow Platform Details

Streamflow brings the distribution base. The platform serves more than 1.3 million users and over 40,000 projects, offering no-code vesting, token locks, streaming, airdrops and staking tools. Streamflow has committed to operating exclusively on Solana. The commercial pitch is aimed at teams that want public settlement without exposing every internal treasury or investor schedule to the market. Clients can use a standard track with preferential default pricing or a custom track for higher-volume and specialised requirements. The launch changes what outside market watchers can see onchain, reducing surveillance and front-running risk around large distributions.