Case Studies (v2)

CS1 — Investigative Media Provenance

C2PA+EP with ETH daily and BTC weekly; OKB and editorial witness.

CS2 — Software Release Chain

In‑toto coexistence; batch anchoring; proof bundles; OKB.

CS3 — Clinical Trial Records

Segment invariants; redactions with tombstones; DAVS≥0.75.

CS4 — Legal Filings & Contracts

KBA, rotations, and weekly BTC archival.

CS5 — Public Procurement & Bidding

BTC‑only for awards; receipts for clarifications; catalogs.

CS6 — Scientific Publishing

Preprint→journal lineage; watcher‑operated replicas.

CS7 — AI/ML Dataset Passport

Safety declarations; milestone anchors; restricted governance.

CS8 — Education Credentials

Institutional OKB; PQ‑hybrid; 7‑year replicas.