# PCAM v3 Public Source Note

Date: 2026-08-27
Publisher: Greyforge Labs
Status: current public evidence note

## Artifact

- Repository: https://github.com/GreyforgeLabs/pcam
- Former repository URL, retained as a GitHub redirect: https://github.com/GreyforgeLabs/pcam-24
- Documentation: https://greyforgelabs.github.io/pcam/
- Version: `3.0.0-draft.1`
- Status: Normative Candidate

PCAM v3 is not Stable or Normative and currently claims no PCAM conformance class.

## Architectural Record

PCAM v3 makes the complete action-machine state authoritative. Logical ticks define ordering. Presentation observes state and submits declared inputs but does not drive authoritative outcomes. PCAM-24 remains an optional 24-cell authoring and projection profile.

The full definitions are public in the master specification:

- https://github.com/GreyforgeLabs/pcam/blob/main/spec/PCAM-v3.md

## Evidence Surface

The repository contains a readable Python reference lane, an independent Rust lane, shared conformance vectors, generated property cases, canonical examples, cross-language state-digest evidence, retained rollback evidence, and machine-readable release gates.

The local release-boundary validation before publication produced:

- 280 passing Python tests
- a passing complete Rust test suite
- matching actual Linux x86-64 and Linux ARM64 cross-language suite digests of `795bec98fc4e22d2127d64868af5ba1b806a42be62fd40f3fa8b90846b38046d`
- a matching bounded comparative report digest of `e9133e751d263552d0545e45c4ca538d199b9ac6ee669a29b25c7899e175262d`
- a strict successful documentation build

The Linux ARM64 evidence came from GitHub Actions run `33097510274`. Its ARM64 job passed the complete Python and Rust gates before producing the committed manifest.

Inspect the controlling records:

- Requirements: https://github.com/GreyforgeLabs/pcam/blob/main/release/requirements-matrix.md
- Conformance ledger: https://github.com/GreyforgeLabs/pcam/blob/main/release/conformance-claims.json
- Reference runtime: https://github.com/GreyforgeLabs/pcam/blob/main/release/reference-runtime-gate.md
- Independent implementation: https://github.com/GreyforgeLabs/pcam/blob/main/release/independent-implementation-gate.md
- Cross-platform: https://github.com/GreyforgeLabs/pcam/blob/main/release/cross-platform-gate.md
- Security and robustness: https://github.com/GreyforgeLabs/pcam/blob/main/release/security-robustness.json

## Claim Boundary

The specification, schemas, tooling, rollback, bounded comparative experiment, current-documentation claims, independent implementation, bounded networking profile, and cross-platform surfaces have closed gates for their stated candidate scope. The reference-runtime gate remains open.

No claim of production readiness, universal superiority, novelty, latency elimination, rollback elimination, or perfect determinism is supported by this note.