OT-2026-000042848
Publication integrity record
Single bellows cup vacuum gripper, two stage ejector, pulsed blow-off after 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-2026-000042848) never changes.
Identity and time
| Publication number | OT-2026-000042848 · never reused |
|---|---|
| Internal UUID | 01a0ae7a-c0d0-71fa-bf10-2acf85e6ce97 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:27:55.489038Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000042848 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4f5f2695d4226dfaada5d0cac2d06e68bf7a917d7e6b5cfd07c22eb77132f143 |
|---|---|
| Markdown | c3aeaf19ff9e267ff3ced46dc9da5c25fc8cfa5262199374e22a85ae557c4668 |
| Publication page | 0888d11cdbdd6ce67c54b8af8149d5edd61167bcdcb0e0553d1b17f829e2ed8f |
| Manifest | 3e9237ab205ad0532a2e89c285456ea638d6a523c4fd36d50416e4cda0b4d3db |
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 | JIc6BvVGtVH+GCflYOOLcBUVc6mwtX6M2DvW2W1e604VBBo87WxlFeljTViCKmQ4uivEr43Az0JogwEOM+NyDQ== |
| 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
| 2026-11-02T00:41:50.008891Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848observed 0888d11cdbdd6ce67c54b8af8149d5ed...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-02T00:41:49.961854Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848/manifest.jsonobserved 3e9237ab205ad0532a2e89c285456ea6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T00:41:49.915713Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848/publication.mdobserved c3aeaf19ff9e267ff3ced46dc9da5c25...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T00:41:49.865371Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848/publication.txtobserved 4f5f2695d4226dfaada5d0cac2d06e68...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T12:41:46.926363Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848observed 0888d11cdbdd6ce67c54b8af8149d5ed...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T12:41:46.873213Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848/manifest.jsonobserved 3e9237ab205ad0532a2e89c285456ea6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T12:41:46.814186Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848/publication.mdobserved c3aeaf19ff9e267ff3ced46dc9da5c25...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T12:41:46.759920Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042848/publication.txtobserved 4f5f2695d4226dfaada5d0cac2d06e68...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 |
|---|