OT-2026-000004761
Publication integrity record
Porous face vacuum gripper, ejector fed, contact triggered, vented before set down, closed cell
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-2026-000004761) never changes.
Identity and time
| Publication number | OT-2026-000004761 · never reused |
|---|---|
| Internal UUID | 01a0a922-841b-7f41-8db3-5c980d89342c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:33:26.686252Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004761 |
| Status | PUBLIC |
Content hashes
| Canonical text | 436ed99cc625ce6963b0b8f7cbccf119e2ac1f0b8326a2a2f0570e7cd8b66a82 |
|---|---|
| Markdown | a540f91db66f22a4febbfb9a508a3e0543478227e0e347358f37533ee0ccb541 |
| Publication page | 37eff9be382d7042626f8da5e04f2633e3d89b1a499923141cfca32103f57530 |
| Manifest | ca037c1727f63ca84493535977b4bdb2c4d757cf962fc815f3e013ece502017c |
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 | Fu1DClETK2EAQS25VCHUxGAZY3Xtpp194N99adOgZ2EOgg2sm/bkjMLUeQ7aFPfqKFkZvRde6H4yNdcCPkOABA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-10-01T20:41:40.645095Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761observed 37eff9be382d7042626f8da5e04f2633...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-01T20:41:40.571616Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761/manifest.jsonobserved ca037c1727f63ca84493535977b4bdb2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:40.492743Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761/publication.mdobserved a540f91db66f22a4febbfb9a508a3e05...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:40.370808Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761/publication.txtobserved 436ed99cc625ce6963b0b8f7cbccf119...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:42:15.835213Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761observed 37eff9be382d7042626f8da5e04f2633...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:42:15.766097Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761/manifest.jsonobserved ca037c1727f63ca84493535977b4bdb2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:42:15.646284Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761/publication.mdobserved a540f91db66f22a4febbfb9a508a3e05...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:42:15.504434Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004761/publication.txtobserved 436ed99cc625ce6963b0b8f7cbccf119...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 |
|---|