OT-2026-000020291
Publication integrity record
Foam pad vacuum gripper, four zone face, pump fed, 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-2026-000020291) never changes.
Identity and time
| Publication number | OT-2026-000020291 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-437a-7f16-9b47-66af07052c5c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020291 |
| Status | PUBLIC |
Content hashes
| Canonical text | a87885ef9731d68d2645b2d72c91c1b68b543d521713d99a9cf0737518a2a1ea |
|---|---|
| Markdown | f046b3cf97397e31fa9704e6a7cebd1b6589b37da98b6dcb0361037c5421783a |
| Publication page | 1a6e0aad528dd4e35b966e3f7d2dfdfdc7c6bb2ab0eaebcbd4875726a0f3ed27 |
| Manifest | 506ca40c6d88ad5da452f7cb9808a5394d97d7d895e5af20861168f806a19d8b |
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 | 1QiB3Zpre9p2SQN5iAKUreiRV+53NUpFbTBi/uZKhYE9VlE5yPJEu2m4WZPUkkpqfhsLYiQU+HqCo4tlkqxuDg== |
| 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
| 2026-09-17T11:56:39.047868Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020291observed 1a6e0aad528dd4e35b966e3f7d2dfdfd...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:56:39.027982Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020291/manifest.jsonobserved 506ca40c6d88ad5da452f7cb9808a539...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:56:39.007268Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020291/publication.mdobserved f046b3cf97397e31fa9704e6a7cebd1b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:56:38.988628Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020291/publication.txtobserved a87885ef9731d68d2645b2d72c91c1b6...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. |
|---|