OT-2026-000000183
Publication integrity record
Resistance spot welding method and resistance spot welding apparatus
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-2026-000000183) never changes.
Identity and time
| Publication number | OT-2026-000000183 · never reused |
|---|---|
| Internal UUID | 01a0a673-1500-7abe-9ffb-4e3883994f74 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:35.008809Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000183 |
| Status | PUBLIC |
Content hashes
| Canonical text | b409d9812d079cfc15a1a542b1d6f3976ff9862c37c93fb083eb44e3dd637526 |
|---|---|
| Markdown | c1bdfbd187a3ffc8a5400114d53b76b4fd01f91a50b8b66ba719b0c6ab66a7c9 |
| Publication page | 90ecbfd55e0e2f5b5a8e0652b5d66919f31cf63dddb3a876ce7355e3899a1257 |
| Manifest | 2ef3a33de7190fa14429666ebb49b7c78656297cb57466b47a506a39f696e656 |
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 | /0xNw2oNMObtPEZ0cTAGw6fetT9IgA3KmEV3ph3kh6Ycc+J0xLtZBrTzBW+dL1aoi2dgp7Ew4WoUC8ZNOgNEDw== |
| 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
| 2026-09-15T20:50:39.510214Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000183observed 90ecbfd55e0e2f5b5a8e0652b5d66919...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:39.360175Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000183/manifest.jsonobserved 2ef3a33de7190fa14429666ebb49b7c7...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:39.347691Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000183/publication.txtobserved b409d9812d079cfc15a1a542b1d6f397...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 |
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