OT-2026-000004272
Publication integrity record
Bellows cup vacuum gripper, four outlet manifold, 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-2026-000004272) never changes.
Identity and time
| Publication number | OT-2026-000004272 · never reused |
|---|---|
| Internal UUID | 01a0a912-f498-7cd1-a63d-eec84b87cd9a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:16:26.907231Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004272 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4727d05563f8c33d233990c06bdfdd96b516d2bedcdd0aad2d1fa3806d614524 |
|---|---|
| Markdown | 7e701cac1d067adb7f288d35083d95091eb432f7bf5916208762ee6ce320a0d2 |
| Publication page | 2e85b2faae48683f9a6b9c63d9a78ac5b51a46134459d6e75de9c6ab06c28158 |
| Manifest | f561e8fa53935259ee3e313b268291ffe05ace98bc56dd0592f4cc20428ac261 |
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 | LCD4EyPcD5BvrlIG/iwWxrcO6ngIPieFVKCmvAxvLvwsQ3L3AHJ1Ohs8o1c3QR4sU9ikK/O/fyO1V7NNRrLvAA== |
| 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
| 2026-09-16T08:44:48.899046Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272observed 2e85b2faae48683f9a6b9c63d9a78ac5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:44:48.642499Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272/manifest.jsonobserved f561e8fa53935259ee3e313b268291ff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:44:48.377714Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272/publication.mdobserved 7e701cac1d067adb7f288d35083d9509...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:44:47.898358Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272/publication.txtobserved 4727d05563f8c33d233990c06bdfdd96...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:16.695610Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272observed 2e85b2faae48683f9a6b9c63d9a78ac5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:16.681908Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272/manifest.jsonobserved f561e8fa53935259ee3e313b268291ff...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:16.668454Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272/publication.mdobserved 7e701cac1d067adb7f288d35083d9509...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:16.651646Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004272/publication.txtobserved 4727d05563f8c33d233990c06bdfdd96...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. |
|---|