OT-2026-000021541
Publication integrity record
Single cup vacuum gripper, plant vacuum 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-2026-000021541) never changes.
Identity and time
| Publication number | OT-2026-000021541 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-865e-7bc1-bc6c-6c6eb1012ed3 · 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-2026-000021541 |
| Status | PUBLIC |
Content hashes
| Canonical text | 349ae7bd17abbb15499dc5284af53e15475b364f90914853e2333bada59b7856 |
|---|---|
| Markdown | 2f87f7cabc4e49cd0f25ac540d7bfec116e3dab3adbc0a65253317fcb5b691d3 |
| Publication page | 347242042ab8623e119b9a6bfbfc51af640dce5e3682cee4ebc805b3d43289ab |
| Manifest | 3f654327268e949c6f132d4192e9493c599af813fcd95e343216abdfc9d05852 |
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 | RQ8oq+5Coej2Gkhwonb3ukB7qBR7kNT+4ijzMQHd5u1nm6T5gTep93LmxNBLykChHhgafalvLUj8qECJAVsDAA== |
| 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
| 2026-09-17T11:55:27.739200Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021541observed 347242042ab8623e119b9a6bfbfc51af...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:55:27.719046Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021541/manifest.jsonobserved 3f654327268e949c6f132d4192e9493c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:55:27.699678Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021541/publication.mdobserved 2f87f7cabc4e49cd0f25ac540d7bfec1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:55:27.681670Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021541/publication.txtobserved 349ae7bd17abbb15499dc5284af53e15...fetched by instance-3.rotem.ai from 34.69.0.72, 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
| Custody package | Pending Custody packages are produced weekly. |
|---|