OT-2026-000002575
Publication integrity record
Method and plant to handle ceramic articles
This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000002575) never changes.
Identity and time
| Publication number | OT-2026-000002575 · never reused |
|---|---|
| Internal UUID | 01a0a67d-7ccc-7bc8-a9ea-dc5a3929690c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:13:56.940373Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002575 |
| Status | PUBLIC |
Content hashes
| Canonical text | 33553ea5c78393c2d89d8e694e3c9ff1f1117fa5e9a0dec9805875c18108ee9e |
|---|---|
| Markdown | 54aa7405bcd6ccb6f9d484838296a90d0df7b8ac385baaac0678d34bd975551a |
| Publication page | 4dd5312860e02172fff5ce15da7a9342e120d98bb62de93bd0500a4b0d27c17b |
| Manifest | d44a3f4bae71031392f802b9a7f703da19f5e307bdce5123a590cd42c0aaae42 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | OXr2yT9Z1/vpfchGolR+43TJmD2gAUJvYWqoid0xEPpdnFUCcjPqJi9u7qzbqVNThm0d5ihEeG95aBiY3ZPiBg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-15T19:30:29.942321Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002575observed 4dd5312860e02172fff5ce15da7a9342...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:30:29.903189Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002575/manifest.jsonobserved d44a3f4bae71031392f802b9a7f703da...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:29.887872Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002575/publication.txtobserved 33553ea5c78393c2d89d8e694e3c9ff1...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.
Independent archive
| External archive | Pending Canonical URLs are submitted to an independent archive in batches. |
|---|
A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.
Third-party custody
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|