OT-2026-000021637
Publication integrity record
Single cup 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-2026-000021637) never changes.
Identity and time
| Publication number | OT-2026-000021637 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb59-758d-90e3-c8b90428c20e · 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-2026-000021637 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4b60d039ade6cb95bbb6fce8578efac571bab7da6fa164d11f09454931b654a8 |
|---|---|
| Markdown | 86b1a0dfce046e2ec252c4c91ec8754b98dd657582c020804a9428516105b057 |
| Publication page | 55789f0f455613efc726ecab9073873e46b7062667f0ddcc54903bb4561fe116 |
| Manifest | 2819f0fb68c80aff5102a2ce24b1a302531573eeb707e5963b8fe5010db79791 |
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 | t1pXQkux9AoWGVZVR0lxOY8i8e8/0VY98/zxc9Sezmy5j07gWOh07X4AjE/sgJutlCp6JsxocvHy+dirCN2rDQ== |
| 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
| 2026-09-17T11:54:10.425705Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021637observed 55789f0f455613efc726ecab9073873e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:10.407720Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021637/manifest.jsonobserved 2819f0fb68c80aff5102a2ce24b1a302...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:10.388384Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021637/publication.mdobserved 86b1a0dfce046e2ec252c4c91ec8754b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:10.366335Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021637/publication.txtobserved 4b60d039ade6cb95bbb6fce8578efac5...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. |
|---|