Umbra and Streamflow have launched private token vesting on Solana, enabling projects to vest and distribute tokens confidentially at scale. Powered by Arcium's encrypted execution engine, the integration allows Streamflow clients to maintain access to time-based locks, price-based conditions, and other distribution mechanisms while keeping token transfers private. Recipients receive vested tokens directly into Umbra wallets, with each vesting schedule contributing to Umbra's shared anonymity pool. The partnership addresses a structural market need: in 2025 alone, approximately $97 billion in tokens were released through vesting and unlock schedules, nearly all fully public and traceable onchain, exposing recipient wallets, unlock timelines, and allocation sizes to chain observers. This transparency creates front-running opportunities and informational asymmetries that projects have historically lacked protocol-level tools to prevent. Streamflow, which recently committed to operating exclusively on Solana, serves more than 1.3 million users and over 40,000 projects as the chain's leading token distribution platform.
Private Vesting Thesis
Token vesting is the primary mechanism crypto projects use to align incentives with teams, investors, and communities. Public vesting schedules expose recipient wallets, unlock timelines, and allocation sizes to anyone observing the blockchain, creating information asymmetries and front-running vulnerabilities that projects have historically had limited tools to address at the protocol level.
Streamflow Platform and Access Tracks
Streamflow offers no-code tools for vesting, token locks, streaming, airdrops, and staking to its 1.3 million users across 40,000+ projects. Clients can access the private vesting integration through two tracks: a standard track offering preferential default pricing for most teams, and a custom track for higher-volume or specialized requirements. Several high-volume conversations are already active.
Umbra Background
Umbra launched public access to its Solana privacy wallet in March 2025. The platform raised $155 million in ICO commitments on MetaDAO in October 2025, reportedly making it one of the most successful raises on the platform. Kru Shah, founder of Umbra, described the partnership as "a landmark moment for the industry." Malisha Stanojevic, CEO of Streamflow, stated: "Onchain privacy is the next frontier we need for further mainstream adoption."
