ProofMeta validator CLI — `proofmeta validate <file>` checks schema compliance, JCS-correct payload_hash, ed25519 signature, and in_reply_to chain integrity.

ProofMeta v1 JSON Schemas — canonical machine-readable spec (envelope + payload schemas).

ProofMeta reference resolver: no-op 'free' payment resolver. Instantly confirms; carries no external dependencies. Used for Tier-1 flows and integration tests.

ProofMeta reference TypeScript SDK — create, sign, and verify Signed Envelopes (manifests, license requests, status updates). Chain-agnostic. No payment, delivery, or anchor dependencies in core.