OT-2026-000031981
Publication integrity record
Single cup vacuum gripper, pump fed, pulsed blow-off after 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-2026-000031981) never changes.
Identity and time
| Publication number | OT-2026-000031981 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-70de-960c-2f2ff4907450 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031981 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5c628a1fe5a7bded7efe6f29e5f80be433379c015f10d92c21514d33011cb08c |
|---|---|
| Markdown | 4d3edfe2979c4d607ea00acf3de75ff98e1a47dc9c2039ee54583804d5b9eb37 |
| Publication page | c397d905599e3279169319b381fd95fdd75dd50a813688be2cc2fcf5861ab912 |
| Manifest | 08bcb0307e464455aff2bc43739196d6fad62141ff69cbfbb87062c26f9603d4 |
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 | f+Py+PWLwo9GpWsrc9qWEvMzcqgALBsUhdqXqEHRMAn4se9QSqWMFLZko5F4MyBa5mGkY+beYPWSXwVbV8AGDA== |
| 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
| 2026-09-17T11:35:16.701378Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031981observed c397d905599e3279169319b381fd95fd...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:35:16.681582Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031981/manifest.jsonobserved 08bcb0307e464455aff2bc43739196d6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:16.663917Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031981/publication.mdobserved 4d3edfe2979c4d607ea00acf3de75ff9...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:16.645409Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031981/publication.txtobserved 5c628a1fe5a7bded7efe6f29e5f80be4...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. |
|---|