OT-2026-000000808
Publication integrity record
Welding method, welding apparatus, welding device, and battery cell
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-2026-000000808) never changes.
Identity and time
| Publication number | OT-2026-000000808 · never reused |
|---|---|
| Internal UUID | 01a0a673-da56-7778-b01e-4b98259f6988 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:25.527231Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000808 |
| Status | PUBLIC |
Content hashes
| Canonical text | c3ab4868b6330875dc9b455696ec3d823ca01869c1c4e0bb78024e7efcb42f88 |
|---|---|
| Markdown | 3e7b3f0fa3212b79fc63ee9dd21bcc9c16cb2342a652019de3f864d2c6a8008a |
| Publication page | e18a6d443313edeaa6efbda585d1e4ad7e5c20a9f54e215c2983b9e518283011 |
| Manifest | 46c0b15f205b21dfbe695ae01f9a19fe3efebef8fc93ceb21392b73090f59bcf |
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 | Ln8lm+PyoH9K6IR/6XuzpUp+rxqMfks+839grhgbxDkLK7d/O2xysreOu8nrcWOp68kpnNONYvsAN9UXZSMhAw== |
| 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
| 2026-09-16T08:41:53.718560Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808observed e18a6d443313edeaa6efbda585d1e4ad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:41:53.125540Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808/manifest.jsonobserved 46c0b15f205b21dfbe695ae01f9a19fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:41:52.645770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808/publication.mdobserved 3e7b3f0fa3212b79fc63ee9dd21bcc9c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:41:52.157158Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808/publication.txtobserved c3ab4868b6330875dc9b455696ec3d82...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:33.131486Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808observed e18a6d443313edeaa6efbda585d1e4ad...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:32.975514Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808/manifest.jsonobserved 46c0b15f205b21dfbe695ae01f9a19fe...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:32.960874Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000808/publication.txtobserved c3ab4868b6330875dc9b455696ec3d82...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 |
|---|