OT-2026-000031104
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, sustained blow-off 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-2026-000031104) never changes.
Identity and time
| Publication number | OT-2026-000031104 · never reused |
|---|---|
| Internal UUID | 01a0ae74-87aa-78fe-9f6d-7897eabd4d1b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:07.653052Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031104 |
| Status | PUBLIC |
Content hashes
| Canonical text | 027097336f5830c288e28b7db50a11d7dd806a42120de3cf851fd914476a725d |
|---|---|
| Markdown | 4544e450ac51b37b20ba94deb952e4915980120aefb8e6f782b3233426bda56f |
| Publication page | 323dcb7e84bf7c6e41f1b6efa3873a5a1c128de1edbd1ce3136617bf2814d4a9 |
| Manifest | 2267eee805242551869fe5e9a02f023ffee36f8d31b2d277bfdbdeaf68b0ab38 |
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 | NWFhi7yqNLtH1IbOsWEv7GjPkeeoOsFmqMkg8qEvL0OONJCtdHddU4V5wcvNgvpdd8R2UtZPT40BZRwoNXWSBw== |
| 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
| 2026-10-20T12:41:04.425493Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104observed 323dcb7e84bf7c6e41f1b6efa3873a5a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-20T12:41:04.341778Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104/manifest.jsonobserved 2267eee805242551869fe5e9a02f023f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T12:41:04.223361Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104/publication.mdobserved 4544e450ac51b37b20ba94deb952e491...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T12:41:04.040959Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104/publication.txtobserved 027097336f5830c288e28b7db50a11d7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:54.290990Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104observed 323dcb7e84bf7c6e41f1b6efa3873a5a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:54.200190Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104/manifest.jsonobserved 2267eee805242551869fe5e9a02f023f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:54.067566Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104/publication.mdobserved 4544e450ac51b37b20ba94deb952e491...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:53.907642Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031104/publication.txtobserved 027097336f5830c288e28b7db50a11d7...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 |
|---|