OT-2026-000004612
Publication integrity record
Bellows cup vacuum gripper, four zone face, plant vacuum fed, contact triggered
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-2026-000004612) never changes.
Identity and time
| Publication number | OT-2026-000004612 · never reused |
|---|---|
| Internal UUID | 01a0a91d-b28d-7d27-83c3-6deb49db7751 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:28:10.895498Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004612 |
| Status | PUBLIC |
Content hashes
| Canonical text | a5959a8d56c1c369e6c03d90de0c4f4b2de714e499f66b5dd324661355fcd574 |
|---|---|
| Markdown | b1fb7fa26d6d3fa9bb569001539c5c6fff46c1dbb0879970e4171f92064a9e6e |
| Publication page | d487def186acc6e9b4392321be8f8675091bf84e3d18d1855f7ee3b66baf6bf9 |
| Manifest | c1489a7c5c415fea04724fcada7797a8087968c77db206772342859764da6855 |
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 | R2ozQRYHD9IkfrRDZ//4C45X6mRQ5nz/v5FxQObfOKCjwIw4oS2OLXjhRlP8ang2yYMIE3k4RHkueJL7Jjd/Cg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-09-25T00:41:18.968118Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612observed d487def186acc6e9b4392321be8f8675...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-25T00:41:18.920202Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612/manifest.jsonobserved c1489a7c5c415fea04724fcada7797a8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T00:41:18.871693Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612/publication.mdobserved b1fb7fa26d6d3fa9bb569001539c5c6f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T00:41:18.745823Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612/publication.txtobserved a5959a8d56c1c369e6c03d90de0c4f4b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T12:41:03.676123Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612observed d487def186acc6e9b4392321be8f8675...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T12:41:03.605461Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612/manifest.jsonobserved c1489a7c5c415fea04724fcada7797a8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T12:41:03.550810Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612/publication.mdobserved b1fb7fa26d6d3fa9bb569001539c5c6f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T12:41:03.365544Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004612/publication.txtobserved a5959a8d56c1c369e6c03d90de0c4f4b...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 |
|---|