Primus Labs brings zero-knowledge proof technology to BNB Chain, letting users verify off-chain data without exposing it
There’s a fundamental tension in blockchain: everything is transparent, but sometimes you need to prove something without showing your homework. Primus Labs just shipped a solution for that on BNB Chain.
The project’s zkTLS verification layer went live on June 23, creating infrastructure that lets users cryptographically verify off-chain data, think Web2 information like bank balances or identity credentials, without actually revealing the underlying data on-chain.
What zkTLS actually does
Oracles like Chainlink solve part of this problem by piping external data on-chain. But they typically handle price feeds and public data, not private user information. zkTLS takes a different approach by using zero-knowledge proofs to verify that specific data exists in a TLS-secured web session without exposing the data itself.
The technology builds on TLSNotary, an open-source protocol for creating cryptographic proofs of web traffic. Primus Labs extended this foundation through its AlphaNet, a decentralized attestation network that makes the verification process trustless rather than relying on a single notary.
The practical applications span several categories: Proof of Reserves for stablecoins and exchanges, reputation-based DeFi lending, real-world asset tokenization, identity verification, and AI-related use cases where data provenance matters.
The backstory and the money behind it
Primus Labs, BNB Chain, and Brevis formed a partnership in March 2026 to develop ZKredit, a middleware layer specifically designed for privacy-preserving identity verification. In May 2026, Primus integrated with Unitas and Brevis to enable real-time Proof of Reserves, letting protocols prove they hold what they claim to hold cryptographically without a third-party auditor.
Primus Labs has raised $6.5M in seed and pre-seed funding. The investor list includes VanEck, Dispersion Capital, and Alchemy.
