ARC Primitive: Offline Egress-Bound Attestation Substrate (Defensive Publication)

This record constitutes a defensive publication of the ARC Primitive, an offline-first attestation substrate enforcing first-witness receipt, egress-bounded proof release, and immutable local verification.

The ZIP archive contains the complete reference artifacts. The accompanying SHA-256 file binds the exact byte-state of the archive.

This disclosure is intended to establish public prior art.