OT-2026-000001276
Publication integrity record
System, method, and apparatus for inspecting a surface
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-2026-000001276) never changes.
Identity and time
| Publication number | OT-2026-000001276 · never reused |
|---|---|
| Internal UUID | 01a0a674-f114-75ae-8443-35734d316508 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:04:36.885237Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001276 |
| Status | PUBLIC |
Content hashes
| Canonical text | e088da3a20be0faa15a1e45b22fafaf7a3a0ccc9b8af2a2087abb008989e35e7 |
|---|---|
| Markdown | 73067c392a4fd810c6e9ffc8cccf9202f56bc04b425aa4e20aec45c7ee803eb8 |
| Publication page | d14a25a96908cbc4d3e63034dcea3f727a991d0751ce558e66faa8bbaa505225 |
| Manifest | 2ee61be76cfc5eec18d026fb0d8a25ae527c94bee439c77976d816cbefa3195a |
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 | g8mQznrEF78nHB0Bkx2guKQhP+Jk5kfv9iy98fmf2KPTWnfC3eDteGU37ghx26lDTVgQRa49CuUHT/5ByTrlDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-10-17T12:41:34.328127Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276observed d14a25a96908cbc4d3e63034dcea3f72...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-17T12:41:34.256775Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276/manifest.jsonobserved 2ee61be76cfc5eec18d026fb0d8a25ae...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:34.134616Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276/publication.mdobserved 73067c392a4fd810c6e9ffc8cccf9202...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:34.000463Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276/publication.txtobserved e088da3a20be0faa15a1e45b22fafaf7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:58.428522Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276observed d14a25a96908cbc4d3e63034dcea3f72...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:58.358024Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276/manifest.jsonobserved 2ee61be76cfc5eec18d026fb0d8a25ae...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:58.256095Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276/publication.mdobserved 73067c392a4fd810c6e9ffc8cccf9202...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:58.142233Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001276/publication.txtobserved e088da3a20be0faa15a1e45b22fafaf7...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 |
|---|