OT-2026-000013981
Publication integrity record
Single cup vacuum gripper, three stage ejector, 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-2026-000013981) never changes.
Identity and time
| Publication number | OT-2026-000013981 · never reused |
|---|---|
| Internal UUID | 01a0ae6d-8dea-7d46-8617-1c0bd81b1291 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:13:30.489074Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000013981 |
| Status | PUBLIC |
Content hashes
| Canonical text | 29fc62c490545ffe53dd93d8325fe3f756e6784a960b93c4213d9b47a146812f |
|---|---|
| Markdown | 7d7a40fab17e240b4bd1479e89db378ba22046b8e3e3b90d0483c10c84751689 |
| Publication page | 3a34563df89b49ccc5453143baab263c751703d865511496ab7c20277467f85b |
| Manifest | 163a5288173ec0d509e644312ec99830aeb5ba395ef30e5fea8981855b8764c4 |
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 | rh3Y9hetofb7grxGVamRS8eIXbIck9ltc5k5ozCqGU5m3tKJDH6g2CgBYwWpxJPFaihWAz2du4kE7FQBwZmHBQ== |
| 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
| 2026-09-17T12:09:11.750523Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013981observed 3a34563df89b49ccc5453143baab263c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T12:09:11.726212Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013981/manifest.jsonobserved 163a5288173ec0d509e644312ec99830...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:09:11.703605Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013981/publication.mdobserved 7d7a40fab17e240b4bd1479e89db378b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:09:11.681166Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013981/publication.txtobserved 29fc62c490545ffe53dd93d8325fe3f7...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. |
|---|