OT-2026-000015308
Publication integrity record
Single bellows cup vacuum gripper, 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-2026-000015308) never changes.
Identity and time
| Publication number | OT-2026-000015308 · never reused |
|---|---|
| Internal UUID | 01a0ae6d-ef48-79cc-89cf-3c1f4a808e71 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:13:55.421510Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000015308 |
| Status | PUBLIC |
Content hashes
| Canonical text | 33ef889049fb1bd8af65654a1fb4a9dc0fa3e81667087fae1a9798b4ce069ce0 |
|---|---|
| Markdown | 699bc925b27bf87bdd4d0a370f380ae424b6a76ee6436fca966ba1e4754a5dbc |
| Publication page | e005a46b65bd29d001e9b42435dfda65015724164aeee95230f5f6ccce4cd0b6 |
| Manifest | 477014eec8cb48b42114c198db739e95d9fd56ebcc878cb53ec570763a46e5ef |
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 | O8T6eNDGcHltKG5bKmlLK7ctPlVVHKONN/NJH5uRN2MXjvqMKSJmyTuhyJdOgnQ3C7kHHraruHyMuttpjzVcDw== |
| 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
| 2026-10-18T20:41:55.006925Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308observed e005a46b65bd29d001e9b42435dfda65...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-18T20:41:54.954827Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308/manifest.jsonobserved 477014eec8cb48b42114c198db739e95...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T20:41:54.888127Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308/publication.mdobserved 699bc925b27bf87bdd4d0a370f380ae4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T20:41:54.726625Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308/publication.txtobserved 33ef889049fb1bd8af65654a1fb4a9dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:24.661707Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308observed e005a46b65bd29d001e9b42435dfda65...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:24.596789Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308/manifest.jsonobserved 477014eec8cb48b42114c198db739e95...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:24.495316Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308/publication.mdobserved 699bc925b27bf87bdd4d0a370f380ae4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:24.380680Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000015308/publication.txtobserved 33ef889049fb1bd8af65654a1fb4a9dc...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 |
|---|