OT-2026-000003415
Publication integrity record
Device for producing printing plates
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-2026-000003415) never changes.
Identity and time
| Publication number | OT-2026-000003415 · never reused |
|---|---|
| Internal UUID | 01a0a6be-7a2d-73a3-bc30-c7b36230b554 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:24:56.110196Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003415 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7f4fbf22d0e38ea8175f6c1e89e234a7a9662e3aeda6ed914c5e734ffac944ba |
|---|---|
| Markdown | b577d768ab7819d2a76057676d7c0ec6e0c00cb6734e53f8888e9a2d28de4e03 |
| Publication page | fa01e8382b29521a50d6106c3ffea04f4b66afe4b770cc82404fc6bd22ae02e1 |
| Manifest | 510dc4e031aefe0a41744dde68cb1644a0e9711a0d60f72e1fda0e0a7baf3a48 |
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 | +cNBpbTQ1tR9t0hNXo7q5bFyQlwL2BEPh62aZEWsB/85e2+T262ORqtEynPUKrlc6j0YdKzM7qp2Itr3ROLLBQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:27:02Z batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof root 0d980c01ea01b2d7f69845e24a85320c... |
|---|
Independent retrieval
| 2026-09-15T20:30:07.983629Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003415observed fa01e8382b29521a50d6106c3ffea04f...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:30:07.945860Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003415/manifest.jsonobserved 510dc4e031aefe0a41744dde68cb1644...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:07.928539Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003415/publication.txtobserved 7f4fbf22d0e38ea8175f6c1e89e234a7...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 |
|---|