OT-2026-000055589
Publication integrity record
Single cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000055589) never changes.
Identity and time
| Publication number | OT-2026-000055589 · never reused |
|---|---|
| Internal UUID | 01a0ae86-a103-79f5-874c-d44512ccc245 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:40:53.783868Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000055589 |
| Status | PUBLIC |
Content hashes
| Canonical text | ef042bbd1d73997794f12ba063ccfbff7f773a6fe703b640f5431f6961213228 |
|---|---|
| Markdown | 57b78bae3d19c7234529c6299bac427e81c020918a7117d69ad22b8a254f08f8 |
| Publication page | de869602b1a229a2804af30a634cc021a4a226120423a760f171419c425089d4 |
| Manifest | 402ae2888f8d69cfdb562be3f71da5d88287f8b3dbffb17a431f6063881f6129 |
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 | UuRytvOgzLd1O9wRttAiHnE/P5ydcjuD1Zvf/ySFufq/ZBL5jxGPQzZqbSYPx37Snxl+/fDk2T+U9VbClaH2Cg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-11-05T08:41:40.454691Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589observed de869602b1a229a2804af30a634cc021...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
|---|---|
| 2026-11-05T08:41:40.393054Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589/manifest.jsonobserved 402ae2888f8d69cfdb562be3f71da5d8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
| 2026-11-05T08:41:40.339843Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589/publication.mdobserved 57b78bae3d19c7234529c6299bac427e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
| 2026-11-05T08:41:40.196264Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589/publication.txtobserved ef042bbd1d73997794f12ba063ccfbff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
| 2026-10-27T12:41:42.276449Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589observed de869602b1a229a2804af30a634cc021...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:42.204759Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589/manifest.jsonobserved 402ae2888f8d69cfdb562be3f71da5d8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:41.931524Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589/publication.mdobserved 57b78bae3d19c7234529c6299bac427e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:41.759137Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055589/publication.txtobserved ef042bbd1d73997794f12ba063ccfbff...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 |
|---|