OT-2026-000021549
Publication integrity record
Single cup vacuum gripper, pump fed, 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-2026-000021549) never changes.
Identity and time
| Publication number | OT-2026-000021549 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-865e-7146-b098-2fae66703616 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:39.631048Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021549 |
| Status | PUBLIC |
Content hashes
| Canonical text | be1f8b8e2494c6ea23d51baacfe363b82c2c5264ea7fdb9a6a088e56a1ed55b9 |
|---|---|
| Markdown | 510c9106fa9af330ef5a92d9a29b74ff8c36bf7a8e680eab78eab1f17223eb95 |
| Publication page | 66246966dc1146230e9763356f287009b0fdb1529ae75f3ead0059dfe376fe6f |
| Manifest | fa1f5ee956ad0f2c254cab61c3b6a8d845a10c80132473b979d8907876f5b076 |
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 | 4RNHDKc9XVL5tyZKDCmuG0UR4YFzEVSuUUV5pxcjdG00qXXKgqKrfliszTQ4g6CVFZ8YCl+0Ao8LQ6P1bAwVBA== |
| 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
| 2026-10-11T12:41:35.667569Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549observed 66246966dc1146230e9763356f287009...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T12:41:35.581149Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549/manifest.jsonobserved fa1f5ee956ad0f2c254cab61c3b6a8d8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T12:41:35.478959Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549/publication.mdobserved 510c9106fa9af330ef5a92d9a29b74ff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T12:41:35.363824Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549/publication.txtobserved be1f8b8e2494c6ea23d51baacfe363b8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:27.051687Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549observed 66246966dc1146230e9763356f287009...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:26.999389Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549/manifest.jsonobserved fa1f5ee956ad0f2c254cab61c3b6a8d8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:26.924688Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549/publication.mdobserved 510c9106fa9af330ef5a92d9a29b74ff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:26.845234Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021549/publication.txtobserved be1f8b8e2494c6ea23d51baacfe363b8...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 |
|---|