OT-2026-000031993
Publication integrity record
Single cup vacuum gripper, pump fed, pulsed blow-off after 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-2026-000031993) never changes.
Identity and time
| Publication number | OT-2026-000031993 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-7b83-acf5-ac9e8d7108eb · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031993 |
| Status | PUBLIC |
Content hashes
| Canonical text | 81881fe1d7e5355c5c64bb49aae11e865eba878ee97d06efb3d811e0c53909a5 |
|---|---|
| Markdown | d36e7e8975f0c8dbcecab7070aac3a5898ea107bb265d4bdcce920d73f3f7a57 |
| Publication page | cde87cfc9e9ae5cf97e11f8582eb981e1bf90f0e8237ea3eb02ac018320dcccf |
| Manifest | 4bda00504a23882f19fa3373b485fa22ef6b389df44f5fa98b68694b02c5165a |
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 | kIivzDF/mz9gOxlNheKNKEiqnbFxXR/Ye88+MAk30Z+JjqPFZV1s9Qkrf9jaNK88XN+xMJ7/zrzOmeF5NCzJCQ== |
| 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
| 2026-09-17T11:35:23.460603Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031993observed cde87cfc9e9ae5cf97e11f8582eb981e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:35:23.440933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031993/manifest.jsonobserved 4bda00504a23882f19fa3373b485fa22...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:23.422834Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031993/publication.mdobserved d36e7e8975f0c8dbcecab7070aac3a58...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:23.402646Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031993/publication.txtobserved 81881fe1d7e5355c5c64bb49aae11e86...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. |
|---|