OT-2026-000004904
Publication integrity record
Bellows cup vacuum gripper, common isolation valve, pump fed, pressure verified, contact triggered, plastic cups
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-2026-000004904) never changes.
Identity and time
| Publication number | OT-2026-000004904 · never reused |
|---|---|
| Internal UUID | 01a0a927-4a0b-71dd-8b7e-2a1e3cffe063 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:38:39.621521Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004904 |
| Status | PUBLIC |
Content hashes
| Canonical text | 63a3fefe24156ad90e09b30f2f44e13ab4f5e0638bfbad9b199088f3e2ff4e7d |
|---|---|
| Markdown | e5fa12ae2e3041d7daa0b2df918bdce2c2f39836d0fbad77b552bfcb123172c4 |
| Publication page | 4df5414503aa35f26772adbb79622f9873c976f59dfb49e40ca569a463aa68ed |
| Manifest | ac22d40e6af5c60b4d37f74d25165e025c83800847413b67dce3622ea7ee0c02 |
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 | Cb3uS/QhJRu5NYuCcAQGSp0qQmQ5dkkvilMfiWV9+HzWDLXzTlM3WiMj3D2Evtv8PAsCqOAFvbz6m/ajxbYfBQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-09-16T07:40:06.415819Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004904observed 4df5414503aa35f26772adbb79622f98...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:40:06.402705Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004904/manifest.jsonobserved ac22d40e6af5c60b4d37f74d25165e02...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:06.387879Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004904/publication.mdobserved e5fa12ae2e3041d7daa0b2df918bdce2...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:06.373672Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004904/publication.txtobserved 63a3fefe24156ad90e09b30f2f44e13a...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. |
|---|