OT-2026-000000561
Publication integrity record
Laser welding method and laser weld joint
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-2026-000000561) never changes.
Identity and time
| Publication number | OT-2026-000000561 · never reused |
|---|---|
| Internal UUID | 01a0a673-8997-7027-bb88-5fe65fcd8ac3 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:04.856092Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000561 |
| Status | PUBLIC |
Content hashes
| Canonical text | 220b34d0f9509fa0561fd38652a7434b8b2e5bd0e1f0e15c358b02dcbe288f01 |
|---|---|
| Markdown | f54a1962969a2ec549c9bd739b7c48b9a6168840cb16210eaff6cc038afb87ee |
| Publication page | 6b3f47225de50503b184741c6bf87ea9767562ad5900b1b42d8cd9c996eb9422 |
| Manifest | 9d8c8fd8eaba810da043b6a202a7adde81cfaa75d037c9ed09f4f7e3ddf6dbda |
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 | dx1x+vunxj/Oxr6JILV3zcN2WYd77/ZvCidEut886OpY79w1p49/DAlM5wd4NQQTfhC6C/dD/Ho6DVJCNu+2BA== |
| 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
| 2026-09-15T20:40:29.777987Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000561observed 6b3f47225de50503b184741c6bf87ea9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:40:29.748408Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000561/manifest.jsonobserved 9d8c8fd8eaba810da043b6a202a7adde...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:29.735360Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000561/publication.txtobserved 220b34d0f9509fa0561fd38652a7434b...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 |
|---|