The Solana privacy protocol Umbra has partnered with the token distribution platform Streamflow to launch private token unlocking on Solana. The new feature is designed for project teams and institutional investors, focusing on keeping sensitive information such as amounts and wallet addresses private during the token unlocking and distribution process.
Supports distribution by time and conditions
This integration builds on Streamflow’s existing token distribution tools, supporting common mechanisms such as time-based vesting and price-conditioned triggers. Once the private vesting period is complete, tokens are directly disbursed to Umbra wallets and entered into its anonymous pool system.
Umbra founder Kru Shah said this collaboration combines Streamflow’s unlocked infrastructure with Umbra’s privacy layer as a joint product integration.
According to the data provided, Streamflow has served over 1.3 million users and covered 40,000 projects. Market data cited in the report indicates that the value of tokens entering the market through unlock programs has exceeded $97 billion in 2025, with token distribution remaining one of the fastest-growing scenarios in the crypto industry.
Disagreements remain on privacy distribution.
However, discussions around privacy tools are not uniform. Supporters argue that anonymity has long been an essential component of the crypto industry, and private distributions can reduce the exposure risks for teams and institutions when operating on-chain.
Opponents worry that excessive anonymity could weaken external oversight and increase the risk of tax evasion or information opacity. Some also argue that keeping the token unlocking process publicly verifiable better enables investors to assess the pace of circulation and selling pressure.
The hackathon attracted over a hundred teams.
In addition to product launches, Umbra disclosed progress in its developer ecosystem. The project established a dedicated track at the Colosseum’s Frontier hackathon, with over 100 teams participating in its track.
The hackathon received a total of 2,857 submissions. In the Umbra track, the privacy-focused payment application Swish Cash took first place, with Seedless and GhostAI ranking second and third, respectively.
The privacy sector has recently strengthened.
The report also noted that privacy-related tokens have shown strong overall performance recently. It stated that over the past 30 days, NEAR and ZEC rose by 84% and 60%, respectively, outperforming the broader market.
The UMBRA token rose to $0.65 on May 26 before pulling back to around $0.49. For the week, the article reports a gain of 47.4%.