OT-2026-000028598
Publication integrity record
Four pad foam vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000028598) never changes.
Identity and time
| Publication number | OT-2026-000028598 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f9-77b5-b4d4-daaae4cb17f6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028598 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6fef53eaf650ae0edc4824e08e021409052401cfa0984826ca957419cdf80cf6 |
|---|---|
| Markdown | 8f7fed878cf1d7cdca0b7c82ccb21d0fafd335cfe3404084b90046ba641d0d6e |
| Publication page | a0e17c8a60208a8be47ad5f63b49eff3f941aa741cb61c7a2184726e31cf75bf |
| Manifest | 1193eb4a6c3c9baa3b7da0e226b6cf1f4e67617b24dbca8046468c558079e5df |
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 | GTeQkMaOU2Rm/5P2REturi4DK5xF8JV/c5h/bvw1v4roXDG3qmfIa6hFwXZNc3c2NTwu0+DCIELlrkoVDNXNAA== |
| 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
| 2026-10-31T00:41:48.245041Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598observed a0e17c8a60208a8be47ad5f63b49eff3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T00:41:48.163532Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598/manifest.jsonobserved 1193eb4a6c3c9baa3b7da0e226b6cf1f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T00:41:48.076575Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598/publication.mdobserved 8f7fed878cf1d7cdca0b7c82ccb21d0f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T00:41:47.992788Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598/publication.txtobserved 6fef53eaf650ae0edc4824e08e021409...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:26.103272Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598observed a0e17c8a60208a8be47ad5f63b49eff3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:25.976868Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598/manifest.jsonobserved 1193eb4a6c3c9baa3b7da0e226b6cf1f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:25.806855Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598/publication.mdobserved 8f7fed878cf1d7cdca0b7c82ccb21d0f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:25.686210Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028598/publication.txtobserved 6fef53eaf650ae0edc4824e08e021409...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 |
|---|