OT-2026-000049840
Publication integrity record
Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off after 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-2026-000049840) never changes.
Identity and time
| Publication number | OT-2026-000049840 · never reused |
|---|---|
| Internal UUID | 01a0ae81-8ff0-760c-97a0-75e7126e24c6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:35:21.728203Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000049840 |
| Status | PUBLIC |
Content hashes
| Canonical text | ba8bf130c4d57d665dcfedfd48ae995daebf9e379736a8ffc836eaa863ecec82 |
|---|---|
| Markdown | aa156bdd2884930013e8e2fd3bc7c983edf154135bbf9a599d7815bf74695a1a |
| Publication page | f937fc84cf0345114a1b0b51cc30b6740ac63d1cbd0085a9e7a69c046bded21b |
| Manifest | e7d54a5aeb9f0047269ae1a4b7502bed0aeab709eba8b0d57ec09fc788b31992 |
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 | 6kG7pBW+A22gWzprZpy4ZZdUlDsdbNMFxVVRr5/oNuAyt83zhn9pEdor09GBdvgeZMryDyzBa9nrpoA5cXl3CA== |
| 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
| 2026-10-27T08:41:47.023759Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840observed f937fc84cf0345114a1b0b51cc30b674...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-27T08:41:46.948062Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840/manifest.jsonobserved e7d54a5aeb9f0047269ae1a4b7502bed...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T08:41:46.840401Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840/publication.mdobserved aa156bdd2884930013e8e2fd3bc7c983...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T08:41:46.744753Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840/publication.txtobserved ba8bf130c4d57d665dcfedfd48ae995d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T04:41:09.312211Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840observed f937fc84cf0345114a1b0b51cc30b674...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T04:41:09.258273Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840/manifest.jsonobserved e7d54a5aeb9f0047269ae1a4b7502bed...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T04:41:09.151294Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840/publication.mdobserved aa156bdd2884930013e8e2fd3bc7c983...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T04:41:09.095731Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049840/publication.txtobserved ba8bf130c4d57d665dcfedfd48ae995d...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 |
|---|