OT-2026-000028746
Publication integrity record
Six pad foam vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down, on a tool changer
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-2026-000028746) never changes.
Identity and time
| Publication number | OT-2026-000028746 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2fa-7061-9feb-4fabf5514d01 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028746 |
| Status | PUBLIC |
Content hashes
| Canonical text | c3a7337fd6cff99cc4927363e976a2d9e7f59cfd89a5a9c6200ff4e667ea3482 |
|---|---|
| Markdown | 313e8b260507564f7b8bc20b201b43c1e2e2962a14eb04fc4d01d31872df2dfe |
| Publication page | 218ac0f0d0b5424f826f41f3a1e40c33ab0da2b6990c6acbac6ab031a1fe9378 |
| Manifest | 490dcab4a6a562edccfdd0a0be50b639f13d1b7537a808e94b8e6d3e41bcb005 |
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 | zTLwSUDjBA05ho5yVnpikf39TjkA0U7gcGPXE/qo7Zb5jv3dwkT60DEsNdNL9/8sDviIKZzOQYIa7cYQV5qdDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-11-02T08:41:19.487916Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746observed 218ac0f0d0b5424f826f41f3a1e40c33...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-02T08:41:19.437770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746/manifest.jsonobserved 490dcab4a6a562edccfdd0a0be50b639...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T08:41:19.387430Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746/publication.mdobserved 313e8b260507564f7b8bc20b201b43c1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T08:41:19.331115Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746/publication.txtobserved c3a7337fd6cff99cc4927363e976a2d9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:09.409098Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746observed 218ac0f0d0b5424f826f41f3a1e40c33...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:09.343605Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746/manifest.jsonobserved 490dcab4a6a562edccfdd0a0be50b639...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:09.263229Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746/publication.mdobserved 313e8b260507564f7b8bc20b201b43c1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:09.188892Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028746/publication.txtobserved c3a7337fd6cff99cc4927363e976a2d9...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 |
|---|