OT-2026-000031933
Publication integrity record
Single cup vacuum gripper, three stage ejector, 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-2026-000031933) never changes.
Identity and time
| Publication number | OT-2026-000031933 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-71a4-b495-6d6d5fc142f8 · 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-2026-000031933 |
| Status | PUBLIC |
Content hashes
| Canonical text | f2c071bd8cecbc0c9c1c1ee4f8b0bf96a25cb75bff8d8c72710144f618421269 |
|---|---|
| Markdown | f7329aa5f3987ffb65d05c5d35baddcac8db1a0d792567d2f9bf785a3a0e412f |
| Publication page | d2235ba5f87e94fcc2ffebe7a0a10ce878d89654b8da58524c103e5bee3de6ea |
| Manifest | 26f5e2b1e25447f489ce7df122f6d246a1eb16c58f2134e6584715a4f2f33e74 |
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 | ZKvcYgf57R1CzbaEo2gSWBGkOyBf9MQh/pzCzEGQd+f3fB2KwmkneStiEmki2qbNpE6VW1p2Fvc1nVis06BwDA== |
| 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
| 2026-10-28T16:41:44.023755Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933observed d2235ba5f87e94fcc2ffebe7a0a10ce8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T16:41:43.946228Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933/manifest.jsonobserved 26f5e2b1e25447f489ce7df122f6d246...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:43.868971Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933/publication.mdobserved f7329aa5f3987ffb65d05c5d35baddca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:43.738447Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933/publication.txtobserved f2c071bd8cecbc0c9c1c1ee4f8b0bf96...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:33.848155Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933observed d2235ba5f87e94fcc2ffebe7a0a10ce8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:33.774468Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933/manifest.jsonobserved 26f5e2b1e25447f489ce7df122f6d246...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:33.699613Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933/publication.mdobserved f7329aa5f3987ffb65d05c5d35baddca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:33.614606Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031933/publication.txtobserved f2c071bd8cecbc0c9c1c1ee4f8b0bf96...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 |
|---|