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T7 · GDPR Art. 17 · request req-2026-004
Erasure-Completeness Certificate
Cross-model follow-up: same subject as req-2026-001, scoped to fine-tune-C deployment lineage.
◆ Substrate gap — P7 verifier pending
P7 erasure-completeness verifier pending — substrate gap. Render shows what a future certificate WILL look like.
P7 implementation pending. The substrate primitive is a reverse-direction T6 information-flow walker over the workspace tag graph; the kernel currently exposes T6 in forward mode only (silver-l8 / l12 protocols). Closing this gap is its own workstream — see references.
trigger: First customer pilot requires a real erasure-completeness certificate (D7 in product surface §3) OR a Phase-P substrate workstream lands the reverse-T6 walker. Whichever fires first.
references
docs/g2m/vertical-opportunities/ai-provenance-product-surface-2026-05-02.md §P7docs/g2m/vertical-opportunities/ai-provenance-implementation/IMPLEMENTATION-PLAN-2026-05-04.md §1.B BE5crates/silver-dsar-v2 — the per-subject reverse walker shares the substrate
Request facts
- user_id
- 4192813
- model
- mdl-fine-tune-C
- filed
- 2026-04-28
- snapshot
- sha:9f1e2c3a4b5d6e7f80a1b2c3d4e5f607
What a real certificate will carry
preview · REFUTEDThe fields below are synthetic. They mirror the shape the future ErasureProofResult::Verified (or ::Refuted) variant will expose. Not a live computation today.
- target node
- model-fine-tune-C-deployed
- scope
- user_id=4192813
- workspace snapshot
- sha:9f1e2c3a4b5d6e7f80a1b2c3d4e5f607
- depth of walk
- 6 hops
- artefacts covered
- 0
- surviving references
- 1
- signed by
- sigstore: [email protected]
- attestation hash
- sha256:2b4d6f8a0c1e3d5f7a9b1c3d5e7f9a1b3d5f7a9c1e3d5f7a9b1c3d5e7f9a1b3c
Refuted (transitive): 1 path connects user_id=4192813 to model-fine-tune-C-deployed via shared training-corpus heritage. Indicates downstream contamination from req-2026-001's residual.