OT-2026-000001718
Publication integrity record
Welding teaching system, generation method for welding program, and non-transitory computer readable medium storing generation program for welding program
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-2026-000001718) never changes.
Identity and time
| Publication number | OT-2026-000001718 · never reused |
|---|---|
| Internal UUID | 01a0a677-f499-7ce8-b175-64c64b29733d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:07:54.393599Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001718 |
| Status | PUBLIC |
Content hashes
| Canonical text | 9b9c3a7c854c25a4a83328002f8be6e20205888bbf9428d4e84e84abcc047e3d |
|---|---|
| Markdown | 756cff95adf71231b4ebb37b69b6bc67aa8447794dcbd194a22d048ad319d835 |
| Publication page | d5bc0de7cf07ea24b57f3d4e2a220bb71c354c5783434fa5208460510e46e2e4 |
| Manifest | 84819547cbb277348a8773b7fe34a8908157a7da9b207dddd477e2ae4211c930 |
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 | xB6MsPscAEmexoQOQuM7jyNI58m15nZz/IdG+OqHzp5cXG0MlrujYnYZ6IJBgm+TJJ/M4B+EmTz2xI7UzGWBBw== |
| 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
| 2026-09-15T19:10:33.439803Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001718observed d5bc0de7cf07ea24b57f3d4e2a220bb7...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:10:33.411343Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001718/manifest.jsonobserved 84819547cbb277348a8773b7fe34a890...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:33.398750Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001718/publication.txtobserved 9b9c3a7c854c25a4a83328002f8be6e2...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 |
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