OT-2026-000002154
Publication integrity record
Holding jig and method for manufacturing optical element
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-2026-000002154) never changes.
Identity and time
| Publication number | OT-2026-000002154 · never reused |
|---|---|
| Internal UUID | 01a0a67a-ea34-7e73-ac8f-fedea000c35a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:11:08.341289Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002154 |
| Status | PUBLIC |
Content hashes
| Canonical text | eb048e9c04c3e467c3584563aa425fe34bae55fc3f39ae932ae5a61f4bb186b2 |
|---|---|
| Markdown | decadaccac285f8f7a19bf9d78d25ee708add615ee6417271d5d03a64654385f |
| Publication page | af0ae9dd4cb215ede2b101edda325f94be680930c647c6f2205cc341e278d00a |
| Manifest | 2e74677e3c322bcf0cc1bdf66923f51023a960c70489790f42f773bd06eeeeb0 |
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 | UDrWp7zj4bXeihj/CVDraniLT0ItaW+7XAK9biaYLRPZgqYEHYRO6LIlqGbL9ap0RaeLwkco9WSrz7D1GtyGDw== |
| 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
| 2026-09-25T12:41:49.196454Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154observed af0ae9dd4cb215ede2b101edda325f94...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-25T12:41:49.132871Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154/manifest.jsonobserved 2e74677e3c322bcf0cc1bdf66923f510...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T12:41:49.049984Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154/publication.mdobserved decadaccac285f8f7a19bf9d78d25ee7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T12:41:48.902244Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154/publication.txtobserved eb048e9c04c3e467c3584563aa425fe3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:57.091913Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154observed af0ae9dd4cb215ede2b101edda325f94...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:56.812720Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154/manifest.jsonobserved 2e74677e3c322bcf0cc1bdf66923f510...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:56.442289Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154/publication.mdobserved decadaccac285f8f7a19bf9d78d25ee7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:55.981844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002154/publication.txtobserved eb048e9c04c3e467c3584563aa425fe3...fetched by grabo-systems from 34.44.131.203, 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 |
|---|