OT-2026-000020003
Publication integrity record
Four bellows cup vacuum gripper, four zone face, two stage ejector, 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-2026-000020003) never changes.
Identity and time
| Publication number | OT-2026-000020003 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-1fb7-7653-bdc3-a5d86d02f5c7 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:13.354643Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020003 |
| Status | PUBLIC |
Content hashes
| Canonical text | d9b8f088fdc675ee41221c09a881db4615bab5aa6d981bb1406acefd088daca4 |
|---|---|
| Markdown | 5ec4093f78e08e62e4c5f7643e6f1652d9b210a70006a70f9d99c9858ccd3eec |
| Publication page | 912ff632885435a00899527cbf6766171332e93854d6dbd5329b6b6fe45d2105 |
| Manifest | a227cad33ff264d7b7b0fe7da2baecbbbe9f486f6614132d7b16e0fdecb10dd0 |
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 | LhAR8D+jEcJxqhd7rA16yI54jfOsy6hHvL9qmNEb0xMK519M9KZjBb7mgeG12lFNXfVMrp0Dm2MoP28+8xXzDg== |
| 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
| 2026-11-02T20:41:19.162602Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003observed 912ff632885435a00899527cbf676617...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-02T20:41:19.106983Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003/manifest.jsonobserved a227cad33ff264d7b7b0fe7da2baecbb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T20:41:19.038562Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003/publication.mdobserved 5ec4093f78e08e62e4c5f7643e6f1652...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T20:41:18.903262Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003/publication.txtobserved d9b8f088fdc675ee41221c09a881db46...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T20:41:22.566863Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003observed 912ff632885435a00899527cbf676617...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T20:41:22.511320Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003/manifest.jsonobserved a227cad33ff264d7b7b0fe7da2baecbb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T20:41:22.462416Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003/publication.mdobserved 5ec4093f78e08e62e4c5f7643e6f1652...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T20:41:22.408666Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020003/publication.txtobserved d9b8f088fdc675ee41221c09a881db46...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 |
|---|