OT-2026-000019537
Publication integrity record
Single cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
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-2026-000019537) never changes.
Identity and time
| Publication number | OT-2026-000019537 · never reused |
|---|---|
| Internal UUID | 01a0ae6e-f394-7658-a6c7-23fe6e26e6e3 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:02.050431Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000019537 |
| Status | PUBLIC |
Content hashes
| Canonical text | 382257bb6fb683f710ceb558aec540ce8e10d9fa87fe8ff59120876ae207c581 |
|---|---|
| Markdown | 671127ca7064b680bcd2887449b80527b898408debb28b56ea33f3cfa3242227 |
| Publication page | 987e83172bb98d387c34be553e1ecf17ec4a60a7c9b054fa2dac90bb6a8ff190 |
| Manifest | fa5761d112a3e1539d83a8b5b6c0c1406b5f3d367c1fc454bb142fd527da69d5 |
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 | qvxf6q0tNzMXHsSS/rmYlhxHefqMbIQnQFKn8fMoZ/W5hrzfG28lSjUS7XHYPqfxTEJ439ch4OgDsHt8bK8/DQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
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Independent retrieval
| 2026-10-17T04:23:03.929136Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537observed 987e83172bb98d387c34be553e1ecf17...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-17T04:23:03.915056Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537/manifest.jsonobserved fa5761d112a3e1539d83a8b5b6c0c140...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-17T04:23:03.897267Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537/publication.mdobserved 671127ca7064b680bcd2887449b80527...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-17T04:23:03.875791Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537/publication.txtobserved 382257bb6fb683f710ceb558aec540ce...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:44.507941Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537observed 987e83172bb98d387c34be553e1ecf17...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:44.424606Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537/manifest.jsonobserved fa5761d112a3e1539d83a8b5b6c0c140...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:44.306441Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537/publication.mdobserved 671127ca7064b680bcd2887449b80527...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:44.191823Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019537/publication.txtobserved 382257bb6fb683f710ceb558aec540ce...fetched by grabo-systems from 34.44.131.203, 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|