OT-2026-000012739
Publication integrity record
Four cup vacuum gripper, four zone face, plant vacuum fed, pulsed 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-2026-000012739) never changes.
Identity and time
| Publication number | OT-2026-000012739 · never reused |
|---|---|
| Internal UUID | 01a0ae6d-5562-774c-ad65-fd88662783b9 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:13:16.019734Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000012739 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4935405745623e88438f1f8ccf025623ac9299e8cec663c1bde029c43c2b0374 |
|---|---|
| Markdown | 04dd79a1834aad147b2834994b3b27c36348df5595a6e74908d14f54523b5882 |
| Publication page | 45c9232527175243a209ba8568b5f6ac04574057474b1a3dc8e05c4b69428a57 |
| Manifest | 4818b6aa306d49dfd021115a5bd0558a236999b23574d35f463463386216a750 |
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 | 5GMXO1t4ZH6zbnAt/Fmv4OAXTAuF4m3zEI2HMVG7ffenaVXzk0Lz9VArW58l79HU/f5B45wZ8YEEJezF1spjDA== |
| 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
| 2026-10-28T04:41:47.433019Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739observed 45c9232527175243a209ba8568b5f6ac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T04:41:47.363469Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739/manifest.jsonobserved 4818b6aa306d49dfd021115a5bd0558a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T04:41:47.272377Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739/publication.mdobserved 04dd79a1834aad147b2834994b3b27c3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T04:41:47.186831Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739/publication.txtobserved 4935405745623e88438f1f8ccf025623...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:42:00.331183Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739observed 45c9232527175243a209ba8568b5f6ac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:42:00.253572Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739/manifest.jsonobserved 4818b6aa306d49dfd021115a5bd0558a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:42:00.157169Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739/publication.mdobserved 04dd79a1834aad147b2834994b3b27c3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:42:00.042987Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000012739/publication.txtobserved 4935405745623e88438f1f8ccf025623...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 |
|---|