OT-2026-000003552
Publication integrity record
Vacuum cup gripper, three zone face, plant vacuum fed, pressure verified at each zone
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-2026-000003552) never changes.
Identity and time
| Publication number | OT-2026-000003552 · never reused |
|---|---|
| Internal UUID | 01a0a90a-5bf7-721c-b000-d3c13ed2d590 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:07:03.545336Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003552 |
| Status | PUBLIC |
Content hashes
| Canonical text | 45787390d4512905bb76b1125d2e589df03fa4757f22fca498acfedb8934a10e |
|---|---|
| Markdown | 8a61749b1bc39d61fed81062fe172d8f61142007e58f75f25bb11f462aac0c11 |
| Publication page | 8cd72bfc0cd85bac09ea806e1f2cfbf4d260176e17d6ea2bb0c4eb6dbfa42640 |
| Manifest | 3631ce4c1199c956e5852452bea940001091a7677d5ae7262fde88be397b4d32 |
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 | BuCGuSRTLeh+W2Ch9gp5Q5Nmvq8z0PyVxKE3Oqb+ix6iQ7mzOTz2IhCLrDxAvQ6J+Wek2mMlG/ZzafK6tVQECg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-16T08:42:35.375484Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003552observed 8cd72bfc0cd85bac09ea806e1f2cfbf4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:42:34.132741Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003552/manifest.jsonobserved 3631ce4c1199c956e5852452bea94000...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:42:33.374580Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003552/publication.mdobserved 8a61749b1bc39d61fed81062fe172d8f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:42:32.908800Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003552/publication.txtobserved 45787390d4512905bb76b1125d2e589d...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
| Custody package | Pending Custody packages are produced weekly. |
|---|