OT-2026-000021617
Publication integrity record
Single cup vacuum gripper, common isolation valve, plant vacuum fed, sustained blow-off before set-down
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-2026-000021617) never changes.
Identity and time
| Publication number | OT-2026-000021617 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb59-73eb-af94-a43c5862f46c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021617 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6c786078765964ccf60f5c571ad3105ef1c23ca999ff947d66101e0ae5978280 |
|---|---|
| Markdown | f4f6e1e8db94f1c262e9bcdaefcd294b885e9b5a5ca2ee656a8041828c1eab48 |
| Publication page | e79392790e08d9c69f6a9ebdc1a34d7b4a68e3dee0b7225e991514f3a42a04ad |
| Manifest | c723ecb83b1b250355f381e76a04e7c03064880e8d5321d0a6243fde84e7c307 |
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 | gQJz8FrjfF+H789gQ0eDA3poqJ462lQ4T+FnCHLXwS1Nf0xOYxobaJfDUMk1No6yCUODHsTbt3gYFkCmuUHfAQ== |
| 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
| 2026-10-03T20:41:56.101576Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617observed e79392790e08d9c69f6a9ebdc1a34d7b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-03T20:41:56.028440Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617/manifest.jsonobserved c723ecb83b1b250355f381e76a04e7c0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:41:55.852040Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617/publication.mdobserved f4f6e1e8db94f1c262e9bcdaefcd294b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:41:55.726880Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617/publication.txtobserved 6c786078765964ccf60f5c571ad3105e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:08.515624Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617observed e79392790e08d9c69f6a9ebdc1a34d7b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:08.495784Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617/manifest.jsonobserved c723ecb83b1b250355f381e76a04e7c0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:08.475782Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617/publication.mdobserved f4f6e1e8db94f1c262e9bcdaefcd294b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:08.456561Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021617/publication.txtobserved 6c786078765964ccf60f5c571ad3105e...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|