OT-2026-000000790
Publication integrity record
Battery powered welding system
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-2026-000000790) never changes.
Identity and time
| Publication number | OT-2026-000000790 · never reused |
|---|---|
| Internal UUID | 01a0a673-d45b-7454-8b11-5e2e4dd15b59 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:23.995815Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000790 |
| Status | PUBLIC |
Content hashes
| Canonical text | 95b6710b8f3f6929fc428fff7fcc4a7fa31707a7ac8864db28ccbe660dd775e7 |
|---|---|
| Markdown | 9d60efffacdff751b2734eba0b5f1c000244a32760d6a3847f49656080f55449 |
| Publication page | 07aa0b6075b0c416560c31d696bca2b37c9ee1655e96d1e47cc39753c28c1c69 |
| Manifest | a67c8a55261e9488f3cb53083318e0534f625d3277317089da57b75eef521107 |
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 | qUJB4JdFcesA+IfiKQ7fKGeTetVFrV1gVVCx4YNY+ZEl3RBmIRRWnLqL/ODr8dTZ19TvUeqx73xpQkLyrKFYAA== |
| 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
| 2026-10-29T12:41:36.549870Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790observed 07aa0b6075b0c416560c31d696bca2b3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T12:41:36.502687Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790/manifest.jsonobserved a67c8a55261e9488f3cb53083318e053...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T12:41:36.456425Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790/publication.mdobserved 9d60efffacdff751b2734eba0b5f1c00...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T12:41:36.294576Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790/publication.txtobserved 95b6710b8f3f6929fc428fff7fcc4a7f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:35.195852Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790observed 07aa0b6075b0c416560c31d696bca2b3...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:35.165787Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790/manifest.jsonobserved a67c8a55261e9488f3cb53083318e053...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:35.151538Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000790/publication.txtobserved 95b6710b8f3f6929fc428fff7fcc4a7f...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 |
|---|