OT-2026-000020261
Publication integrity record
Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000020261) never changes.
Identity and time
| Publication number | OT-2026-000020261 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-437a-77b9-a337-7aab1901fd32 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020261 |
| Status | PUBLIC |
Content hashes
| Canonical text | b6f5d1973316bfa44d28162aedc63d6c18e000ef476a3c349512a5f47ad70571 |
|---|---|
| Markdown | e3a49d3c8e098b2046e874421136535bc2322bd71ddc6574ad95ae654eb030e1 |
| Publication page | f0f9431b2d29892180757f47b974d8dc6c505dbb06625afb1b9ad4d558efa65e |
| Manifest | 4c2072a717e8bdca17be7b66056afe0bbae217491dc4a5f4b40920b86de28e11 |
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 | /AK7nItMLXIkRYkm5oVaYw3VIC1EV3PvIIlKOd8ldUbeilsgGJexd9yPWIhwoLokZ8gztlsiBbvgjdnujslLDQ== |
| 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
| 2026-10-17T12:41:55.944557Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261observed f0f9431b2d29892180757f47b974d8dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-17T12:41:55.895136Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261/manifest.jsonobserved 4c2072a717e8bdca17be7b66056afe0b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:55.803950Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261/publication.mdobserved e3a49d3c8e098b2046e874421136535b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:55.517573Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261/publication.txtobserved b6f5d1973316bfa44d28162aedc63d6c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T04:41:36.926840Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261observed f0f9431b2d29892180757f47b974d8dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T04:41:36.823347Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261/manifest.jsonobserved 4c2072a717e8bdca17be7b66056afe0b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T04:41:36.624353Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261/publication.mdobserved e3a49d3c8e098b2046e874421136535b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T04:41:36.495169Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020261/publication.txtobserved b6f5d1973316bfa44d28162aedc63d6c...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 |
|---|