OT-2026-000021963
Publication integrity record
Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, pulsed blow-off before set-down
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-2026-000021963) never changes.
Identity and time
| Publication number | OT-2026-000021963 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-71a4-8dd6-6f1c29b43581 · 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-2026-000021963 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6caf35f63eff85511394ab53ef5ffcca78d24a1d2a9944959916d79ba47fffa1 |
|---|---|
| Markdown | b4105a6a40ddf5e654a77b8698f56dda3592b9145cf58365aae706da127a490c |
| Publication page | 4ebe3f88293ff0cda0857ae443ca107d20baf4acc0e0a69900b9026c257a41a7 |
| Manifest | 1a1ca804a3e3370a8ec70f86a14cbd1e30c4a5106005e045681a2847e4b3f5dd |
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 | j31WPgjl4m+Jfk77OLJa0f7xQjOz15JMYl9XuPlicvDKuuZY0KmLQd2FaKDVSidockEQCgYK8fLqPsHVGlzXBA== |
| 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... |
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Independent retrieval
| 2026-09-23T04:41:24.919647Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963observed 4ebe3f88293ff0cda0857ae443ca107d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-23T04:41:24.846261Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963/manifest.jsonobserved 1a1ca804a3e3370a8ec70f86a14cbd1e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:24.763432Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963/publication.mdobserved b4105a6a40ddf5e654a77b8698f56dda...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:24.650520Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963/publication.txtobserved 6caf35f63eff85511394ab53ef5ffcca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:22.479284Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963observed 4ebe3f88293ff0cda0857ae443ca107d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:22.173548Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963/manifest.jsonobserved 1a1ca804a3e3370a8ec70f86a14cbd1e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:21.780761Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963/publication.mdobserved b4105a6a40ddf5e654a77b8698f56dda...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:21.164705Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021963/publication.txtobserved 6caf35f63eff85511394ab53ef5ffcca...fetched by grabo-systems from 34.44.131.203, 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|