OT-2026-000028954
Publication integrity record
Three pad foam vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000028954) never changes.
Identity and time
| Publication number | OT-2026-000028954 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2a9e-79ea-af1d-f3eba930b551 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:38.288761Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028954 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4b38e65f136d961849fa68487438a58ec6456596739150bb72a55a2755ea0f4e |
|---|---|
| Markdown | d7780bc03e76e002d5a9600c4469b5362e99d80ebaf66dc0b77f5b293a75f723 |
| Publication page | e872d351050d0cad199b98940bd02ba8b99b8c85f7657f8d41a497781ea96f29 |
| Manifest | 06bdfa939e205657c47560dc5dcee552c921590d9b8729e84b34f59c01fe73fd |
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 | frt9fkgzfHcF6daCXTBxHo7V8dausSA4hIM3Akkz1IwZzsEwi/wYK/r6PJbz6BBUjbZqhKF1xrtRSrhNmWO7CQ== |
| 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
| 2026-09-23T20:41:50.058813Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954observed e872d351050d0cad199b98940bd02ba8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-23T20:41:50.007084Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954/manifest.jsonobserved 06bdfa939e205657c47560dc5dcee552...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:49.942031Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954/publication.mdobserved d7780bc03e76e002d5a9600c4469b536...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:49.806108Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954/publication.txtobserved 4b38e65f136d961849fa68487438a58e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:34.994500Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954observed e872d351050d0cad199b98940bd02ba8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:34.835392Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954/manifest.jsonobserved 06bdfa939e205657c47560dc5dcee552...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:34.661128Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954/publication.mdobserved d7780bc03e76e002d5a9600c4469b536...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:34.514102Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028954/publication.txtobserved 4b38e65f136d961849fa68487438a58e...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 |
|---|