OT-2026-000031297
Publication integrity record
Four cup vacuum gripper, four outlet manifold, pump fed, 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-2026-000031297) never changes.
Identity and time
| Publication number | OT-2026-000031297 · never reused |
|---|---|
| Internal UUID | 01a0ae74-87ac-7690-a3b8-f62ea143c4d1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:07.653052Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031297 |
| Status | PUBLIC |
Content hashes
| Canonical text | b826a2101e056311252f1339d958318acf16500ceb8e1f843d21c4e507bfb45d |
|---|---|
| Markdown | 865640c84f16554300a8ee04bb03a14878ea4af1c9037aea7b6682fa366786ac |
| Publication page | c878e95a9feae24deea8e68cbc16187ad51e8c01550e6f9f21bbb628b926078d |
| Manifest | 8a513ff3fc983b377140de25fa975fe91a2becc1db8e1bf26d461e7bbc266c21 |
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 | l4nw+KCKDtNKScq05HrjEI3W/Tf5MnW1e/dfu0io+W2z1L2RHsst0YWNDgjwZP5sqgDUIpKBS6+OhDEt4JrfAg== |
| 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
| 2026-11-03T16:41:46.277490Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297observed c878e95a9feae24deea8e68cbc16187a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-03T16:41:46.196327Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297/manifest.jsonobserved 8a513ff3fc983b377140de25fa975fe9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-03T16:41:46.123428Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297/publication.mdobserved 865640c84f16554300a8ee04bb03a148...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-03T16:41:45.980702Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297/publication.txtobserved b826a2101e056311252f1339d958318a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T16:41:14.307294Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297observed c878e95a9feae24deea8e68cbc16187a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T16:41:14.229750Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297/manifest.jsonobserved 8a513ff3fc983b377140de25fa975fe9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T16:41:14.152143Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297/publication.mdobserved 865640c84f16554300a8ee04bb03a148...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T16:41:14.063836Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031297/publication.txtobserved b826a2101e056311252f1339d958318a...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 |
|---|