OT-2026-000028655
Publication integrity record
Three cup vacuum gripper, three zone face, per zone isolation, 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-2026-000028655) never changes.
Identity and time
| Publication number | OT-2026-000028655 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f9-7086-a407-8f7c7cb690c4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028655 |
| Status | PUBLIC |
Content hashes
| Canonical text | f129726f5b27916b54c86628e66f96e240d3b7ef1d3beff310d70daeb0f24f64 |
|---|---|
| Markdown | 1c99683408a92db4b2b2269298b017c3c5b8cd44d3df34449732fa36c180756e |
| Publication page | 596f5a816261ec59fd8622b6c6001400f60633f7588dc18f6c2ae4754e3c961f |
| Manifest | b4f31db346dca401716c6d88e39a3d271b4a56eea420f098f6dc53a1da95316c |
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 | N38ocm7hFix0uAR0sQDB0eXoRSM1/3Hnx99xL+olYBXjFudWap33BIE8q5J/m4FZEq2HX+W3eF+Sp9Av4IzIAg== |
| 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
| 2026-09-20T08:41:21.861882Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655observed 596f5a816261ec59fd8622b6c6001400...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-20T08:41:21.660339Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655/manifest.jsonobserved b4f31db346dca401716c6d88e39a3d27...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T08:41:21.092621Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655/publication.mdobserved 1c99683408a92db4b2b2269298b017c3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T08:41:20.807382Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655/publication.txtobserved f129726f5b27916b54c86628e66f96e2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T20:41:59.713854Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655observed 596f5a816261ec59fd8622b6c6001400...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T20:41:59.555301Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655/manifest.jsonobserved b4f31db346dca401716c6d88e39a3d27...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T20:41:59.415355Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655/publication.mdobserved 1c99683408a92db4b2b2269298b017c3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T20:41:59.244285Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028655/publication.txtobserved f129726f5b27916b54c86628e66f96e2...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 |
|---|