OT-2026-000004031
Publication integrity record
Vacuum cup gripper, pump fed, pressure verified at each zone, contact triggered
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-2026-000004031) never changes.
Identity and time
| Publication number | OT-2026-000004031 · never reused |
|---|---|
| Internal UUID | 01a0a90c-f981-72f7-aba0-5e21892c0ccb · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:09:54.948417Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004031 |
| Status | PUBLIC |
Content hashes
| Canonical text | b00ec54d74cab726a47ca359cd7257cbd31f24997ad0ca607fcebca6541412d2 |
|---|---|
| Markdown | 8d8f60a94c5a24c9da2596664ef8506469c2abcb800df2bdbc288671dc24cf06 |
| Publication page | 2672e8c7d491b7d75c599216d17002d1170ce56629225146a18ad3a235ab8974 |
| Manifest | d36e3b475b4798be8a29a83baae2338030b3feb9c6f87a48c0da1f729a130353 |
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 | co/pl0weB/SQehjElxUXsSqvlAITS9Bk2h4e8BMjTFs174D+e+H8fuNef8v13ynwghcI+w7v01xrEbPWqM2+BA== |
| 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
| 2026-09-16T07:10:05.155156Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004031observed 2672e8c7d491b7d75c599216d17002d1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:10:05.137024Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004031/manifest.jsonobserved d36e3b475b4798be8a29a83baae23380...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:05.122623Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004031/publication.mdobserved 8d8f60a94c5a24c9da2596664ef85064...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:05.107783Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004031/publication.txtobserved b00ec54d74cab726a47ca359cd7257cb...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. |
|---|