OT-2026-000027839
Publication integrity record
Four cup vacuum gripper, four zone face, pump 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-2026-000027839) never changes.
Identity and time
| Publication number | OT-2026-000027839 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a4a5-7dd5-99ba-5752e796f783 · 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-2026-000027839 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0fab3f08894bedfdb8b6d8468ff46afde65370fb82a2ffc0ad764c7f06530c8f |
|---|---|
| Markdown | 71543da1dd32df0921e236c31b10ae8bf1e83f7e596bf5cc298e585d1c1ba9b9 |
| Publication page | 82153897ab748b020e487696492af17c3e8c971994b27ddab1fbcf3d9cbc9307 |
| Manifest | 648b0ff96258b883a2e156934b46631af1c2dce8d68463a14303b03094fbb58c |
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 | chqs9dcRpTpt/nWZiNoSzJjkpTFRStXzPvJNFCoMQO98dpl2DKluEQXid6F9IlI8q2nrOjwU2/tWqam2Qq2YBA== |
| 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
| 2026-10-23T04:41:46.931578Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839observed 82153897ab748b020e487696492af17c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T04:41:46.771715Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839/manifest.jsonobserved 648b0ff96258b883a2e156934b46631a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T04:41:46.609837Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839/publication.mdobserved 71543da1dd32df0921e236c31b10ae8b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T04:41:46.407751Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839/publication.txtobserved 0fab3f08894bedfdb8b6d8468ff46afd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T20:41:58.217860Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839observed 82153897ab748b020e487696492af17c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T20:41:58.141905Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839/manifest.jsonobserved 648b0ff96258b883a2e156934b46631a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T20:41:58.011319Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839/publication.mdobserved 71543da1dd32df0921e236c31b10ae8b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T20:41:57.887209Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027839/publication.txtobserved 0fab3f08894bedfdb8b6d8468ff46afd...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 |
|---|