OT-2026-000000534
Publication integrity record
Resistance spot welding device and method for vehicle assembly
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-2026-000000534) never changes.
Identity and time
| Publication number | OT-2026-000000534 · never reused |
|---|---|
| Internal UUID | 01a0a673-8162-75f6-ae35-1ab7051c2164 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:02.754779Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000534 |
| Status | PUBLIC |
Content hashes
| Canonical text | 18f8235289b473d5117d2b21f5b937b466bfc42d1817755c8977bb04a0bb1a9f |
|---|---|
| Markdown | 49f93261eebf368e54fe49c4844496c0ada177a652672bef4a9889249752e657 |
| Publication page | 2553475146fb574b26c8976ac779c836dafc3869b321391779b1b4bce18e1d9c |
| Manifest | 9e0ded9baad0e8e26f79ec996eac22120594abc6074f723b5cec2265bdcf1877 |
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 | f7X1RHEECvxK3TvVnRJ9GVdGSImWDVNvQ2tM4L8KfC6YSayofcN4NjOEqBCysKMxKHcpdoJ2VfleYzOS3NiaDQ== |
| 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
| 2026-09-16T04:23:11.322369Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534observed 2553475146fb574b26c8976ac779c836...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:23:11.308582Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534/manifest.jsonobserved 9e0ded9baad0e8e26f79ec996eac2212...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:11.293441Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534/publication.mdobserved 49f93261eebf368e54fe49c4844496c0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:11.278525Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534/publication.txtobserved 18f8235289b473d5117d2b21f5b937b4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:42:04.605210Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534observed 2553475146fb574b26c8976ac779c836...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:42:04.110334Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534/manifest.jsonobserved 9e0ded9baad0e8e26f79ec996eac2212...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:42:03.808891Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534/publication.txtobserved 18f8235289b473d5117d2b21f5b937b4...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:33.044193Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000534observed 2553475146fb574b26c8976ac779c836...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 |
|---|