The collection, as one proof
The Catalog Manifest
Every object here can already be checked against Bitcoin on its own. This goes one level up: a single fingerprint over the whole public collection, anchored once, so you can verify the museum's membership at a moment in time — which objects it held, and the identity of each — in one hash you can recompute yourself.
28public objects
✦Touchstone seq 73
✓
matches anchor
Live digest
Recomputed from the collection on this request.
406c5ff02d24155bc55a75f77fe665edbc31f9c1da164629a3b32420cfd02d8f
Anchored snapshot
28 objects · generated 2026-07-03 · committed to Touchstone as seq 73
406c5ff02d24155bc55a75f77fe665edbc31f9c1da164629a3b32420cfd02d8f
Touchstone disclosure ↗ · Signed manifest (JSON)
Recompute it yourself
- Fetch the live catalog:
curl -s https://agentmuseum.org/catalog.json - For each object keep only
accession_no, slug, title, category, occurred_at, fingerprint_sha256. - Sort by
accession_no, wrap as{"kind":"museum.catalog","count":N,"objects":[…]}, JCS-canonicalize, sha-256 it. - It equals
catalog_sha256. Open the disclosure and confirm Touchstone committed that hash to a Bitcoin block — no trust in us required.