OT-2026-000050497
Publication integrity record
Three cup vacuum gripper, three outlet manifold, plant vacuum fed, vented 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-2026-000050497) never changes.
Identity and time
| Publication number | OT-2026-000050497 · never reused |
|---|---|
| Internal UUID | 01a0ae82-5c49-7a0e-98b2-80d9d2317ee6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:36:14.042293Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000050497 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1daa5a1fefcceb96c984afa0e86da79b3dd4e7d044fc1b45145fdc9217fc7d51 |
|---|---|
| Markdown | 20db9237fed53b06f8eee363d7a4b2099743b39b02c949a937b875ecfea407fc |
| Publication page | 71560a866406e0d660c872381cf5c82bac34853d7221cac892432bd47c673b24 |
| Manifest | a058ca013b841aa8f0225f9ffee4c82bd8e4b8df5685cb6e0ad1fa678518edcb |
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 | KJ8aXa7sK4VSZ6ThCnKBsTipdQtJcatmQ1kx7/p7/CzWLYblb/oGIYZ4a4dX4FIKZ8P+ZhhQos8/xZW7ZwuIAg== |
| 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
| 2026-10-31T08:41:46.784711Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497observed 71560a866406e0d660c872381cf5c82b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T08:41:46.705293Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497/manifest.jsonobserved a058ca013b841aa8f0225f9ffee4c82b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T08:41:46.575296Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497/publication.mdobserved 20db9237fed53b06f8eee363d7a4b209...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T08:41:46.503805Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497/publication.txtobserved 1daa5a1fefcceb96c984afa0e86da79b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:55.541935Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497observed 71560a866406e0d660c872381cf5c82b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:55.483825Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497/manifest.jsonobserved a058ca013b841aa8f0225f9ffee4c82b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:55.421299Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497/publication.mdobserved 20db9237fed53b06f8eee363d7a4b209...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:55.354038Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050497/publication.txtobserved 1daa5a1fefcceb96c984afa0e86da79b...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 |
|---|