OT-2026-000004412
Publication integrity record
Porous face vacuum gripper, common isolation valve, pump 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-2026-000004412) never changes.
Identity and time
| Publication number | OT-2026-000004412 · never reused |
|---|---|
| Internal UUID | 01a0a916-dbc0-7a0f-a790-cf6f446acf31 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:20:42.690461Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004412 |
| Status | PUBLIC |
Content hashes
| Canonical text | d1c14667083a204cd51e4eb8c83ab1880e0486721c32c1510737071635a5e8aa |
|---|---|
| Markdown | 55a4f98884d27e5b5b3fc222f1334ba221b0bf68103051b321d1afcea2b9d6ae |
| Publication page | c98013b42b2d1b2cd0b773960cea12a28e9fe8dd2908d4065918f6521686397f |
| Manifest | a9191c99c6c1714dd83f0f79cc593851992c5f561db4181bbeea243d15aa46ae |
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 | YgbQCg1hDNI8zUKiKCUk6tdA2Zhjv1e/HoK/d8hzbC43ltF9VhAkda8H/QNuZgVSyzgagHJHCZmmkxqcJk7ABw== |
| 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
| 2026-09-16T07:30:30.435744Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004412observed c98013b42b2d1b2cd0b773960cea12a2...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:30:30.423604Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004412/manifest.jsonobserved a9191c99c6c1714dd83f0f79cc593851...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:30.411810Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004412/publication.mdobserved 55a4f98884d27e5b5b3fc222f1334ba2...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:30.399106Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004412/publication.txtobserved d1c14667083a204cd51e4eb8c83ab188...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. |
|---|