OT-2026-000000872
Publication integrity record
Liquid cold welding methods and 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-2026-000000872) never changes.
Identity and time
| Publication number | OT-2026-000000872 · never reused |
|---|---|
| Internal UUID | 01a0a673-f151-7149-b9fc-87bee6411392 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:31.410299Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000872 |
| Status | PUBLIC |
Content hashes
| Canonical text | 8095a7d2b40516350899bcb2bca40939b5578ec52fc7335cdd5c5e30e4853888 |
|---|---|
| Markdown | 22e57eeb895b0b882dbd6e6b5a165efb0f159af1ba5bfd150f0aa27224f5d3d1 |
| Publication page | acadf64252eabc354afb460feb4ded0d34f8a636fc3508a937d721e06ea69c66 |
| Manifest | 04f34422da6b1e17a38878d7cad4af64b649342d94291f94a15f23677d504441 |
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 | Rz2jBT4hL3OGe+6yJrvJ/GYNNnoS5RD01+bR7UNwVUOD7OtRuXrKF8Szre/lDdvMF6tbPcuSqsAN82aucrOKBw== |
| 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
| 2026-09-16T04:23:13.950938Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872observed acadf64252eabc354afb460feb4ded0d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:23:13.936602Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872/manifest.jsonobserved 04f34422da6b1e17a38878d7cad4af64...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:13.922014Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872/publication.mdobserved 22e57eeb895b0b882dbd6e6b5a165efb...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:13.846642Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872/publication.txtobserved 8095a7d2b40516350899bcb2bca40939...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:25.211430Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872observed acadf64252eabc354afb460feb4ded0d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:25.182744Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872/manifest.jsonobserved 04f34422da6b1e17a38878d7cad4af64...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:25.166316Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000872/publication.txtobserved 8095a7d2b40516350899bcb2bca40939...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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