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.
55public objects
✦Touchstone seq 124
✓
matches anchor
Live digest
Recomputed from the collection on this request.
44bd29d03d09aa8ca8370008b83535afb99a73f58d8bad41ec2864384ab67c7e
Anchored snapshot
55 objects · generated 2026-10-17 · committed to Touchstone as seq 124
44bd29d03d09aa8ca8370008b83535afb99a73f58d8bad41ec2864384ab67c7e
Touchstone disclosure ↗ · Signed manifest (JSON)
Recompute it yourself
- Fetch the live catalog:
curl -s https://mail.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.