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prov-engine-js

v0.1.0

Published

Minimal Node.js provenance engine for prov-spec interop

Vulnerabilities

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

Links

Git

Maintainers

mikefrilotmikefrilot

Keywords

provenanceprov-specsha256canonical-jsonintegrityinteropconformancezero-dependency

Readme

prov-engine-js

A minimal, zero-dependency Node.js provenance engine for prov-spec interop.

prov-spec L1

Purpose

This engine exists to prove that prov-spec is language-agnostic. It implements the same methods as the Python reference validator, passes the same test vectors, and shares no code.

Requirements

  • Node.js 18+
  • No dependencies

Usage

# Print capability manifest
node prov-engine.js describe

# Compute canonical form and SHA-256 digest
node prov-engine.js digest input.json

# Wrap payload in mcp.envelope.v0.1
node prov-engine.js wrap payload.json

# Verify a digest claim
node prov-engine.js verify-digest artifact.json

# Run against a prov-spec test vector
node prov-engine.js check-vector ../prov-spec/spec/vectors/integrity.digest.sha256

Implemented Methods

| Method | Description | |--------|-------------| | integrity.digest.sha256 | Canonical JSON + SHA-256 digest | | adapter.wrap.envelope_v0_1 | Wrap payload in MCP envelope |

Test Vectors

# Run all vectors
node prov-engine.js check-vector ../prov-spec/spec/vectors/integrity.digest.sha256
node prov-engine.js check-vector ../prov-spec/spec/vectors/adapter.wrap.envelope_v0_1

Expected output:

PASS: integrity.digest.sha256 vector
PASS: adapter.wrap.envelope_v0_1 vector

Conformance

This engine declares fully-conformant status for Level 1 (Integrity).

See prov-capabilities.json for the full capability manifest.

License

MIT