OT-2026-000000573
Publication integrity record
Weld seam structure and welding process suitable for a narrow-gap water-cooled wall tube panel
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-2026-000000573) never changes.
Identity and time
| Publication number | OT-2026-000000573 · never reused |
|---|---|
| Internal UUID | 01a0a673-8e92-7f65-bd3a-07d6cc2f3c73 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:06.130712Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000573 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5b2d44f91c593e13d15791cc468533d189fc446b325cc47b205c82164028e4e6 |
|---|---|
| Markdown | 74013ee268ce33ae1453262d2e171ad2f8a26221c563b50a474d22eac087eee4 |
| Publication page | 0fb7b5b94a2d637b2ffda8aa0b7334471f64fe89d243c1daa4afbe05835d60e3 |
| Manifest | ba021ea8cda39edc89d83d54474f58dc17ce024e24937e2c005695c086cdc024 |
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 | KvzhjTKuAXUfeusVdJqeEEkQFdwbeSqVxlT6XZ2sbkq59LlTqdb0eVLEartWhhdDcPb8G9wP0MY0F0ZNn3BhDw== |
| 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
| 2026-09-21T16:41:03.419094Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573observed 0fb7b5b94a2d637b2ffda8aa0b733447...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-21T16:41:03.312955Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573/manifest.jsonobserved ba021ea8cda39edc89d83d54474f58dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:03.234176Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573/publication.mdobserved 74013ee268ce33ae1453262d2e171ad2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:03.101436Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573/publication.txtobserved 5b2d44f91c593e13d15791cc468533d1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:28.484221Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573observed 0fb7b5b94a2d637b2ffda8aa0b733447...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:28.331674Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573/manifest.jsonobserved ba021ea8cda39edc89d83d54474f58dc...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:28.318316Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000573/publication.txtobserved 5b2d44f91c593e13d15791cc468533d1...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 |
|---|