OT-2026-000002740
Publication integrity record
Mechanical arm for nut detachment and installation and use method thereof
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-2026-000002740) never changes.
Identity and time
| Publication number | OT-2026-000002740 · never reused |
|---|---|
| Internal UUID | 01a0a67e-7d39-7150-ace7-3a0fdb9d0661 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:02.585761Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002740 |
| Status | PUBLIC |
Content hashes
| Canonical text | c5ce1b75d3c4bc0ceed69a53f2b1afc00d64907ec0b8907a4a5322fad1422679 |
|---|---|
| Markdown | 7389debb2145e7234246742ef2b8e4aba02d3ff36aad5286413f8a53456de885 |
| Publication page | 148f13b53a60fa4a2bb0928678b95dc6dbf6b212efd604ea18c923948a695c7a |
| Manifest | f778c13389383ae68dd0f1ff0c0686590a68902cda96b2fad6653e6d3ab355a5 |
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 | V3T43Jzybmdpz85U7eZdzSq3WUQvFtacaCt0qhwQJbStJD3D7/VB6QyqODi5glxqTgSoL18SLW12LZUbUM6wAA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-10-24T00:42:12.471452Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740observed 148f13b53a60fa4a2bb0928678b95dc6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-24T00:42:12.405515Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740/manifest.jsonobserved f778c13389383ae68dd0f1ff0c068659...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T00:42:12.337095Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740/publication.mdobserved 7389debb2145e7234246742ef2b8e4ab...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T00:42:12.242304Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740/publication.txtobserved c5ce1b75d3c4bc0ceed69a53f2b1afc0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:24.827825Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740observed 148f13b53a60fa4a2bb0928678b95dc6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:24.668575Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740/manifest.jsonobserved f778c13389383ae68dd0f1ff0c068659...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:24.531848Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740/publication.mdobserved 7389debb2145e7234246742ef2b8e4ab...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:24.337347Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002740/publication.txtobserved c5ce1b75d3c4bc0ceed69a53f2b1afc0...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 |
|---|