OT-2026-000001238
Publication integrity record
Robot control device and plasma cutting method
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-2026-000001238) never changes.
Identity and time
| Publication number | OT-2026-000001238 · never reused |
|---|---|
| Internal UUID | 01a0a674-b83d-74c5-9fe0-72a7c76f19f1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:04:22.334149Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001238 |
| Status | PUBLIC |
Content hashes
| Canonical text | fbbf72b976eb3c08687f2686a5029d14f29ec9f33915f2635652df66ed5be1fa |
|---|---|
| Markdown | 3c942f6844b255053e01e5c66b0264113453e934742f9f4bb7974b8f00eb11d3 |
| Publication page | 337bfcd7ad2e0809667f8c6f4e4e3dc857e756c8f005ff288b88333f57c8aa8a |
| Manifest | c9efdcd110b16c46e1d5e8908dea15b0f263570994e4bb2e2f5608e0b5750689 |
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 | LDk+0PCh1Xs1QZ+2XJIG7VW/RrKuqJVcZ1WkU9dFAcmnITKH6WMmZSQ53ElXkIG2hgx41vQ30GUx90fWWizkBA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-17T04:43:34.476709Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238observed 337bfcd7ad2e0809667f8c6f4e4e3dc8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T04:43:34.152461Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238/manifest.jsonobserved c9efdcd110b16c46e1d5e8908dea15b0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:43:33.773387Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238/publication.mdobserved 3c942f6844b255053e01e5c66b026411...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:43:33.344572Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238/publication.txtobserved fbbf72b976eb3c08687f2686a5029d14...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:40.566708Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238observed 337bfcd7ad2e0809667f8c6f4e4e3dc8...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:40.535694Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238/manifest.jsonobserved c9efdcd110b16c46e1d5e8908dea15b0...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:40.522932Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001238/publication.txtobserved fbbf72b976eb3c08687f2686a5029d14...fetched by instance-3.rotem.ai from 127.0.0.1, 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 |
|---|