OT-2026-000004453
Publication integrity record
Porous face vacuum gripper, four zone face, per zone isolation, ejector fed, pressure verified
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-2026-000004453) never changes.
Identity and time
| Publication number | OT-2026-000004453 · never reused |
|---|---|
| Internal UUID | 01a0a918-420c-73b2-9dc5-b3066c16f1cd · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:22:14.415565Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004453 |
| Status | PUBLIC |
Content hashes
| Canonical text | 3dd616ee35406619db1ba28ba9657f7592a42fb94f071e2ed98c2c2cf0ac0982 |
|---|---|
| Markdown | a8bb517ec6eff932032843cfe2885f5458a40a58faf90d0cbe400670dca04815 |
| Publication page | 23984fe567d8a83dd9d7f6f22223131e53915fec34cd04175292e9c8256f7351 |
| Manifest | f32e22e9c40adcaf89fb9e9b2b7fa45fe103bc7708ab319c5b6c1031ad006d26 |
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 | hwug3CcmhM6FPdkBs2Pv6qG9Hjwqm7W9njiYyOHNSHE6domTyzDEw3nJbP1EZGaSfkQegbRgVwk7rG2S1/zXCQ== |
| 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
| 2026-09-16T07:30:25.910363Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004453observed 23984fe567d8a83dd9d7f6f22223131e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:30:25.896617Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004453/manifest.jsonobserved f32e22e9c40adcaf89fb9e9b2b7fa45f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:25.881614Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004453/publication.mdobserved a8bb517ec6eff932032843cfe2885f54...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:25.744423Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004453/publication.txtobserved 3dd616ee35406619db1ba28ba9657f75...fetched by instance-3.rotem.ai from 34.69.0.72, 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. |
|---|