OT-2026-000028003
Publication integrity record
Two cup vacuum gripper, two zone face, per zone isolation, two stage ejector, 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-2026-000028003) never changes.
Identity and time
| Publication number | OT-2026-000028003 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a51f-7624-a1c9-84b548a48626 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:04.113553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028003 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7256e9e3c6477eda4d54c3a7ba4fa5659dca7203ea1324fe5fd3e183745550e4 |
|---|---|
| Markdown | 82b3b40081d312f48a34797bb487f11b5132a31d98e259a230bf8e68a5944b55 |
| Publication page | 53a2b02d1dea2fdbb648d9fdd8b2c7263d221f1c484f2f0c161e2dc4e45fe83c |
| Manifest | c3baccaf5be6aa5c145ea204a2fbec510056f55c9214692579c04c306e7ce28f |
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 | /e7G+YW02WNj26JDHVoywtjyvlqtcTmOVomir+57jD0jz8ZpaJG6XArCJGY7DZ0OYN0OzmR/xkIR7aR01tBKBQ== |
| 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
| 2026-10-22T04:42:33.071933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003observed 53a2b02d1dea2fdbb648d9fdd8b2c726...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T04:42:32.893548Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003/manifest.jsonobserved c3baccaf5be6aa5c145ea204a2fbec51...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T04:42:32.775472Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003/publication.mdobserved 82b3b40081d312f48a34797bb487f11b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T04:42:32.531679Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003/publication.txtobserved 7256e9e3c6477eda4d54c3a7ba4fa565...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:44.023051Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003observed 53a2b02d1dea2fdbb648d9fdd8b2c726...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:43.941106Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003/manifest.jsonobserved c3baccaf5be6aa5c145ea204a2fbec51...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:43.865263Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003/publication.mdobserved 82b3b40081d312f48a34797bb487f11b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:43.796724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028003/publication.txtobserved 7256e9e3c6477eda4d54c3a7ba4fa565...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 |
|---|