OT-2026-000090853
Publication integrity record
Four cup vacuum gripper, four zone face, per zone isolation, pump fed, pressure sensor per zone, sustained 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-2026-000090853) never changes.
Identity and time
| Publication number | OT-2026-000090853 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c010-7b2d-a413-e655d17fe008 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:03.518217Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090853 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7406a54e54143880eaf6768944dd70c5d5bfdc7f4d0d3f47f89341da1cc4337f |
|---|---|
| Markdown | 448c1ec8eb80bd0796c8a448cbfb6702333f57b5519add4e006ef92d8fe0f53f |
| Publication page | 3e4a8398e46e60adb6ce70805094bcc7af5eb18ee5f24f4858e42b0a9d1e5462 |
| Manifest | 088283d4aaa2accecdf4e9e34e3e806b5c317dee42806fa9f363b7735f3b94ea |
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 | dzZxOHXZVvnL1fFczxTQc0tFG2xPWAQKhi46vz50y1M5QRE683YkRdv/H25a68dVgA5DYarY1fYUulwtdjhjBg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-13T00:41:24.535424Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853observed 3e4a8398e46e60adb6ce70805094bcc7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-13T00:41:24.485726Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853/manifest.jsonobserved 088283d4aaa2accecdf4e9e34e3e806b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T00:41:24.436374Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853/publication.mdobserved 448c1ec8eb80bd0796c8a448cbfb6702...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T00:41:24.254499Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853/publication.txtobserved 7406a54e54143880eaf6768944dd70c5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T16:43:38.862660Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853observed 3e4a8398e46e60adb6ce70805094bcc7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T16:43:38.642404Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853/manifest.jsonobserved 088283d4aaa2accecdf4e9e34e3e806b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T16:43:38.408695Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853/publication.mdobserved 448c1ec8eb80bd0796c8a448cbfb6702...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T16:43:37.961978Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090853/publication.txtobserved 7406a54e54143880eaf6768944dd70c5...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 |
|---|