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@poh-kit/verifier

v0.1.0

Published

Server-side Self Protocol + Semaphore verification against pluggable storage

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

plantagoai-complantagoai-com

Keywords

proof-of-humanitysybil-resistancesemaphoreself-protocolzkverifier

Readme

@poh-kit/verifier

Server-side verification for poh-kit: Self Protocol ePassport proofs + tier-gated anonymous Semaphore signals, written against pluggable storage so you bring your own persistence.

Install

npm install @poh-kit/verifier @poh-kit/core

What's here

  • verifyPassportProof(input, deps) + createSelfVerifier(config) — verify a Self Protocol proof, enforce one-passport-one-nullifier (Sybil resistance), and record an IdentityProofRecord. Same subject re-verifying is idempotent.
  • verifySemaphoreSignal(input, deps) — verify a tier-gated, replay-protected anonymous signal. Checks run group-nonempty → tier-root match → nullifier-unspent → ZK proof, marking the nullifier spent only on full success.
  • buildGroups(nullifiers, groups) — build the tier-expanded Semaphore groups from verified commitments.
  • Storage adapters — NullifierStore, GroupStore, UsedSignalStore interfaces (the open/closed boundary), plus InMemory* implementations for tests and examples.

The in-memory stores are for development. In production, implement the three interfaces against your own datastore.

Example

See the runnable end-to-end flow (real Groth16 proof) in examples/evm-hardhat.

License

MIT OR Apache-2.0.