OT-2026-000000336
Publication integrity record
Arc welding 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-2026-000000336) never changes.
Identity and time
| Publication number | OT-2026-000000336 · never reused |
|---|---|
| Internal UUID | 01a0a673-3f3b-74ae-91a2-9114ba6d153a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:45.819462Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000336 |
| Status | PUBLIC |
Content hashes
| Canonical text | ea0a8b7c733139c18dcc2d63e27ed321d1d02f53333587c8e190c1ef562f695a |
|---|---|
| Markdown | 7537b3e853392ac974208d802b4857317681e0d192ecfe4a34865073c3ad5d35 |
| Publication page | 91aa55eb46d1e6deecae4e58f34a1a6c0da17c289e9c6e660155a711e4b8a84f |
| Manifest | a219604ffce2345ef9a2a01238030a9e607f01e557a8bfbe2d59d6fd2e4f7d59 |
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 | h//K7r4wveYgedMGsFhfwJZJv9AkaqzEtK6UkgGQVBP83HIQ+J5KvQer7QFGUTe1pfbDnSFziaYSbOFUudcNCg== |
| 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
| 2026-09-15T20:50:22.497933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000336observed 91aa55eb46d1e6deecae4e58f34a1a6c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:22.341786Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000336/manifest.jsonobserved a219604ffce2345ef9a2a01238030a9e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:21.312853Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000336/publication.txtobserved ea0a8b7c733139c18dcc2d63e27ed321...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 |
|---|