OT-2026-000072406
Publication integrity record
Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000072406) never changes.
Identity and time
| Publication number | OT-2026-000072406 · never reused |
|---|---|
| Internal UUID | 01a0ae92-89d7-7d88-83d1-cdea1e0bda69 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:53:54.283203Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000072406 |
| Status | PUBLIC |
Content hashes
| Canonical text | 88870ee1781fa26fa172dfa9b1d768a062199c20353a5a80d8ccc8dab7d7c603 |
|---|---|
| Markdown | 00cb1d79b442f68ee5bc3f1a31986d235924c8a3f7afe998760c24937fcae67f |
| Publication page | 6681d87b473534832949fcab90c0562c48abec6aba9e6fcad4e5ba30a1294043 |
| Manifest | d363fca659993da3c2642f6508eb502c9b856c0333e266b4b18b7e997b590272 |
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 | 4o4FQtRh5C/XxkZDwwMIrYSZBlWAf+WPCsmvh7d0VsyjcPqO40O3ODo2SNWTUhrTPlKkoVx5tap/kZvsq9r7Aw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-29T00:41:17.913890Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406observed 6681d87b473534832949fcab90c0562c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T00:41:17.823172Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406/manifest.jsonobserved d363fca659993da3c2642f6508eb502c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T00:41:17.764655Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406/publication.mdobserved 00cb1d79b442f68ee5bc3f1a31986d23...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T00:41:17.627426Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406/publication.txtobserved 88870ee1781fa26fa172dfa9b1d768a0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T08:41:57.902918Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406observed 6681d87b473534832949fcab90c0562c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T08:41:57.836093Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406/manifest.jsonobserved d363fca659993da3c2642f6508eb502c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T08:41:57.736282Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406/publication.mdobserved 00cb1d79b442f68ee5bc3f1a31986d23...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T08:41:57.532033Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072406/publication.txtobserved 88870ee1781fa26fa172dfa9b1d768a0...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 |
|---|