OT-2026-000000526
Publication integrity record
Welding device
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-2026-000000526) never changes.
Identity and time
| Publication number | OT-2026-000000526 · never reused |
|---|---|
| Internal UUID | 01a0a673-7ec9-751b-8406-407dfc9f16e3 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:02.089806Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000526 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5d0611244a26e059846d4a322b8cf3690bb1203f2cafd21f6adaef3651d38b44 |
|---|---|
| Markdown | cbd82e0f6560e48b6dee318e44b505eec32291322d7a62f9a667b416a3987dd7 |
| Publication page | 54e20301955c00d2fdc5e23bed147387bf7f339e4cd49d723bf58394e229d72b |
| Manifest | 61609907c030fa75268a32ad66e6692b0bbbf9522eeb32e2f0c22fdc10e04cdd |
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 | fApvMjdPuhyWbgjX+MaZLbk10s90Xf7RAY6Fnkh/NANL3W4ahBXb/gv8TuO8QL0UwgJKuQYqWswYD0ofvPCTDA== |
| 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
| 2026-09-15T20:40:33.976975Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000526observed 54e20301955c00d2fdc5e23bed147387...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:40:33.818833Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000526/manifest.jsonobserved 61609907c030fa75268a32ad66e6692b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:33.807205Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000526/publication.txtobserved 5d0611244a26e059846d4a322b8cf369...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 |
|---|