OT-2026-000002677
Publication integrity record
Separator device adapted to be positioned between two ophthalmic lenses
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-2026-000002677) never changes.
Identity and time
| Publication number | OT-2026-000002677 · never reused |
|---|---|
| Internal UUID | 01a0a67e-18c7-78f8-a4bc-bea6874b00bd · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:14:36.872238Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002677 |
| Status | PUBLIC |
Content hashes
| Canonical text | 61bd8bbb3a2b541e58dbce7e926da6fcca870b1c8239da4f6e43c4207853e277 |
|---|---|
| Markdown | 6d99e509997f6717e96986dc97f37fdb28d285234212ad49358da510eeed5662 |
| Publication page | e94322e2256a9be562e8fe4f3f5fd8e2f3b185c7fe33b009fe0c942e7cb5c9cf |
| Manifest | 5be34cefe2eb61d97df02328406eaaba451b5a520993d7546079ffc075a8c5dd |
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 | hxMKhxeJfVR9eOuIvLehY1krrJ0oEBqiY3Ldq1M2d8klSjdDVoMumhP/RX1ZsOGbEPqLKNT43k+zCvdYVPypCg== |
| 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
| 2026-10-10T04:42:05.771291Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677observed e94322e2256a9be562e8fe4f3f5fd8e2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-10T04:42:05.691796Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677/manifest.jsonobserved 5be34cefe2eb61d97df02328406eaaba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T04:42:05.546428Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677/publication.mdobserved 6d99e509997f6717e96986dc97f37fdb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T04:42:05.396226Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677/publication.txtobserved 61bd8bbb3a2b541e58dbce7e926da6fc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:16.426089Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677observed e94322e2256a9be562e8fe4f3f5fd8e2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:16.350472Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677/manifest.jsonobserved 5be34cefe2eb61d97df02328406eaaba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:16.267959Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677/publication.mdobserved 6d99e509997f6717e96986dc97f37fdb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:16.172727Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002677/publication.txtobserved 61bd8bbb3a2b541e58dbce7e926da6fc...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 |
|---|