Execute private, anonymous on-chain payroll with ZK-security.
The Commitment Layer for Private Web3
Proof Crater is a privacy-first commitment engine for blockchain data. It enables teams to anchor complex datasets on-chain, from private payment distributions to historical state snapshots, and verify them later using zero-knowledge proofs and cryptographic evidence. The result is a system where high-stakes claims are verifiable without trusting the data provider, the infrastructure, or exposing sensitive user identities.
Our flagship ZK Vault functionality allows for fully anonymous, non-custodial asset distribution. Depositors commit a Merkle root of private payment obligations (such as salaries or airdrops) and lock funds into a secure vault. Using browser-side ZK-proof generation, recipients can claim their funds to any clean address via a relayer. Because the proofs are built locally, Proof Crater never sees your secrets, and the blockchain never links the depositor to the final recipient.
Beyond private distributions, Proof Crater remains a robust independently verifiable snapshot registry. It captures historical on-chain state at a specific block and anchors it as a tamper-evident reference. This is critical for audits, governance votes, and compliance reports where you need to prove what the state of the world was months or years ago without recomputing the entire chain.
Proof Crater is designed for scenarios where privacy and scrutiny matter more than speed. By combining Merkle-based state anchoring with Zero-Knowledge proofs, we provide a chain-agnostic foundation for long-lived obligations. Whether you are distributing a private payroll or freezing an audit trail, the evidence remains reproducible, auditable, and resistant to silent modification.
- Anonymous ZK-Payouts — Distribute funds privately via browser-generated ZK-SNARKs and relayers.
- Snapshot-based Evidence — Freeze historical blockchain state at a defined block for future reference.
- Non-Custodial Design — We never have access to your funds or your private secrets.
- On-chain Commitments — Publish Merkle roots to EVM-compatible contracts for trustless, independent verification.
- Transparent Fees — A fixed percentage fee is processed during the deposit stage. Once the funds are in the vault, the claimable amount is final and guaranteed by the smart contract.
Proof Crater — the foundation of private, verifiable truth.