open data exports
The full public catalogue is downloadable as a single document in either JSON or CSV form, with a separate chain-only export for verifiers that do not need the descriptive fields. Each export is generated on request, against the catalogue's current state. The SHA-256 checksum reported below is computed over the bytes that were served and is also returned in the response's x-sha256 header.
available exports
| file | description | records | size |
|---|---|---|---|
| catalogue.json application/json | Full catalogue as a JSON document. One record per entry, ordered by date of submission ascending. Includes the genesis-hash anchoring the chain. sha-256 · 1275911137893367e60e51ca44ea8ced75db1ef87334b362dc4ce42d7c5cfb78 | 369 | 262.1 KB |
| catalogue.csv text/csv | Full catalogue as a flat CSV (RFC 4180-style). Multi-valued fields (Raman peaks, cross-references) are pipe-separated within their cell. sha-256 · 1e25f84668600fe4e1b43ec2ab570d3f209c123b432246ba3d122536f1c65a34 | 369 | 96.1 KB |
| proof-chain.json application/json | Chain-only export: accession identifier, date of submission, and proof-hash for each record. Suitable for downstream verifiers that do not need the descriptive fields. sha-256 · 1271e5851f833cda9461ba02c0adabe1f66088c6b3226d9cc05c1cea045fede3 | 369 | 60.4 KB |
bundle aggregate · 418.6 KB · generated on request from the live catalogue · ordered by canonical proof-chain ordering (date asc, identifier asc)
verifying an export
On unix-like systems the integrity of a downloaded export can be confirmed by computing its SHA-256 locally and comparing it against the value above:
curl -sO https://anonymousmaterials.com/data/catalogue.json shasum -a 256 catalogue.json
Catalogue exports are not snapshots in any formal sense — they are recomputed at request time. To bind a citation to the catalogue's state at a specific moment, cite both the SHA-256 of the export at the moment of consultation and the head-hash published in the most recent annual gazette.
licence and acknowledgement
The catalogue is published as a public registry without warranty as to accuracy, provenance, or composition. There is no licence fee. The registry asks only that downstream uses cite the registry by domain (anonymousmaterials.com) and the date of consultation. See §11 of the cataloguing rules for the registry's preferred citation form.
users requiring a bulk historical export of the printed accession books — including pre-2014 records under the legacy numbering scheme — should address the standing registrar via the contact channel listed in the methodology document.