OT-2026-000004939
Publication integrity record
Vacuum cup gripper, two zone face, per zone isolation, plant vacuum fed, 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-2026-000004939) never changes.
Identity and time
| Publication number | OT-2026-000004939 · never reused |
|---|---|
| Internal UUID | 01a0a928-766a-7b23-a3e9-7831a9afb06f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:39:56.397270Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004939 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5a2a176d54b872114c13b8603c153f6a66f206293eb619a4576c613c9753a988 |
|---|---|
| Markdown | eb38ecafdd5052e89904e7a2ddb4355ee410594cbf783017e8aef72e4fb8db7a |
| Publication page | 2a06e06236560b2d9658f642258421e54a3b1a4579fd83ea78d3de953b098260 |
| Manifest | 2b6b47f7325c6ec10a132dabe4fbd6c55c4e4a06d6fc82f52c64a3e384a52c7b |
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 | fjylvGNP5v+5wmQ3B1adDslDHjZjQrHqQ7I7IMZ6kGxgLPBFsTWelmSqnSbjBDyFgV/nlZCA/mT+5sJJ3zBTCQ== |
| 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
| 2026-09-16T07:40:02.432639Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004939observed 2a06e06236560b2d9658f642258421e5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:40:02.414911Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004939/manifest.jsonobserved 2b6b47f7325c6ec10a132dabe4fbd6c5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:02.387379Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004939/publication.mdobserved eb38ecafdd5052e89904e7a2ddb4355e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:02.373834Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004939/publication.txtobserved 5a2a176d54b872114c13b8603c153f6a...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. |
|---|