OT-2026-000021854
Publication integrity record
Foam pad vacuum gripper, common isolation valve, pump fed, sustained 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-2026-000021854) never changes.
Identity and time
| Publication number | OT-2026-000021854 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-7c9f-a322-fc26e7d5503a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021854 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1a0bda0b5ff84cecf147af2d505ec7edc09e1543d5b92d47bcff5232cab74dfd |
|---|---|
| Markdown | 58ddf8fb09bc7c8f600f7d692621ac2ef49b49c158a6b0d1e95b64d6af1f80a1 |
| Publication page | 99692030d45ad2f405a43f5a1e4d53b1d566cf300a87d1df7acf963318cec7d6 |
| Manifest | f437b8e8161e4fedadc19425983788e5409582e6de3bd70e45c781af64788bb1 |
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 | 9H0JyWTWE/WV+3gMtp12JAyiNqQZGTojSLX+UHLlCryR2zxu5hGug13FnaJ0Bzh2Cyr5MKUsB3bfz6QP9jCFDQ== |
| 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... |
|---|
Independent retrieval
| 2026-09-17T11:54:24.879873Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021854observed 99692030d45ad2f405a43f5a1e4d53b1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:24.863294Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021854/manifest.jsonobserved f437b8e8161e4fedadc19425983788e5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:24.846355Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021854/publication.mdobserved 58ddf8fb09bc7c8f600f7d692621ac2e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:24.829035Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021854/publication.txtobserved 1a0bda0b5ff84cecf147af2d505ec7ed...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. |
|---|