๐Œ‹โ€Œ TD613 Ash ยท Local Commitment Kernel ยท metadata-only custody firewall

Ash Custody // v0.7 Lab

Register artifacts with a true browser-local SHA-256 commitment, replay custody, test projections, build Veils, compare leakage deltas, and issue recall notices without turning arrival into consent, receipt into proof, or projection into safety.

Ash owns custodyReceipts index onlyPhason diffs projectionExact bytes stay local

Intake ยท Register Artifact

This is not a public upload. The selected file is read locally, hashed with Web Crypto SHA-256, and never placed in the request envelope. No file selected means L0 metadata-only registration.

L0_METADATA_ONLY ยท no artifact byte digest has been computed.

The commitment supports digest comparison for exact bytes when recomputed. It does not establish possession, authorship, authenticity, identity, permission, truth, or trusted time.

Leak Challenge

Server mode analyzes metadata/projections only. Client-local mode clears the local text after scoring.

Veil Builder

Builds a structural surrogate without raw text, quotes, names, exact paths, or a stable universal hash by default.

Ash Veil is structural, not a content summary.

Cinder Builder ยท Transport Held

Phase 6 has not been implemented. Plaintext fragments must not cross the server boundary. The field remains visible for roadmap continuity, but this surface performs no network request.

Ash Compare

Phason Custody Diff

Recall / Burn Notice

Recall does not claim deletion from external systems.

Receipts as Index

Garden: source-role leak

Garden: stable hash risk

Garden: recall after leak