OT-2026-000031949
Publication integrity record
Single cup vacuum gripper, three 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-2026-000031949) never changes.
Identity and time
| Publication number | OT-2026-000031949 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-7bea-9eb3-50abe4ffff90 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031949 |
| Status | PUBLIC |
Content hashes
| Canonical text | 494f798cd1d234d2ea1892957d8c6c2253262c12fcd35356dc419f6554319ba9 |
|---|---|
| Markdown | 2dc7267199c5da95d6bc50a17a2036ad6b20b3dd74982479934bdf92f6f092b5 |
| Publication page | e31a43fdd805590569ba06f7104ce1a2cddffb0f50caa0380ce71b15bffa6192 |
| Manifest | 195a7e6d191401661120e8bb95049a1c34ac20d4d4439dcf766801d40bb631d6 |
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 | oYkg/S3D8LFZnq1z17uSZlDfQDdZmMfAXsr8JksLauKQz7Lve8ui1jROk1Ga471yvVXv5q4qbFU0gQBHczpaDA== |
| 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
| 2026-10-31T08:41:58.067258Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949observed e31a43fdd805590569ba06f7104ce1a2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T08:41:57.994375Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949/manifest.jsonobserved 195a7e6d191401661120e8bb95049a1c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T08:41:57.916484Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949/publication.mdobserved 2dc7267199c5da95d6bc50a17a2036ad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T08:41:57.849696Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949/publication.txtobserved 494f798cd1d234d2ea1892957d8c6c22...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:38.269086Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949observed e31a43fdd805590569ba06f7104ce1a2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:38.144351Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949/manifest.jsonobserved 195a7e6d191401661120e8bb95049a1c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:38.073868Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949/publication.mdobserved 2dc7267199c5da95d6bc50a17a2036ad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:37.935886Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031949/publication.txtobserved 494f798cd1d234d2ea1892957d8c6c22...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 |
|---|