OT-2026-000003941
Publication integrity record
Porous face 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-2026-000003941) never changes.
Identity and time
| Publication number | OT-2026-000003941 · never reused |
|---|---|
| Internal UUID | 01a0a90b-8847-7617-910c-38af5836bdca · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:08:20.427018Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003941 |
| Status | PUBLIC |
Content hashes
| Canonical text | 11c8ddd8571f08d3b0c58053e7e82907950cd568168d54e3e227f2c5b6ad5904 |
|---|---|
| Markdown | e00687e27ac3a25c9b592bcb1a3790a307d189e9dbb00568530828459114a38d |
| Publication page | 59b23fb95a67ac267ce644a51320df21fb400ce11e3c00534e6819843e23cc9c |
| Manifest | af05d87b0d7f952f2c6f9a0f63fb676b369daf3bc74472f27bb4cd91a473a475 |
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 | 39mzkBoWjh/DWpKDlt7fQsLndKcDSqa1MKJXyiD5QbvbDCUICtc6cGwnsHWDoYXgqST9VLoytKqn8kfeZ6QMDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-10-21T08:41:59.050881Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941observed 59b23fb95a67ac267ce644a51320df21...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-21T08:41:58.919537Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941/manifest.jsonobserved af05d87b0d7f952f2c6f9a0f63fb676b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T08:41:58.722983Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941/publication.mdobserved e00687e27ac3a25c9b592bcb1a3790a3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T08:41:58.369050Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941/publication.txtobserved 11c8ddd8571f08d3b0c58053e7e82907...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:25.239706Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941observed 59b23fb95a67ac267ce644a51320df21...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:25.173904Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941/manifest.jsonobserved af05d87b0d7f952f2c6f9a0f63fb676b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:25.118193Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941/publication.mdobserved e00687e27ac3a25c9b592bcb1a3790a3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T04:41:24.992962Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003941/publication.txtobserved 11c8ddd8571f08d3b0c58053e7e82907...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 |
|---|