OT-2026-000000220
Publication integrity record
Laser devices and methods for laser metal deposition
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-2026-000000220) never changes.
Identity and time
| Publication number | OT-2026-000000220 · never reused |
|---|---|
| Internal UUID | 01a0a673-1ede-7c91-b8af-ec855535f7a7 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:37.535152Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000220 |
| Status | PUBLIC |
Content hashes
| Canonical text | f90d4dbc83abb430b24b90894bad9de24efc391dd68ccf6d7b2fc1421426c7bd |
|---|---|
| Markdown | 6c47dde25fe1342cc46c18e1c87a51ead62d96b449b217ee89b93a48487d5b66 |
| Publication page | 33268c947bf17f046447c735a9482c734161c09264e0445993cdcbf11b89fc01 |
| Manifest | 4ae065b80f9629bd7d18a0b8217ab0242155a2a5de0165437f7ba92f74ae255a |
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 | HQD8LivnNMg1/x7SNQMMtDUAbGYnDri7iIL+7KXmHymqVT0hJBQy62t7xj2yISJMfi6GRgF6/xO2Z2ZzipRACQ== |
| 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
| 2026-09-15T20:50:35.307288Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000220observed 33268c947bf17f046447c735a9482c73...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:35.276037Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000220/manifest.jsonobserved 4ae065b80f9629bd7d18a0b8217ab024...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:35.262422Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000220/publication.txtobserved f90d4dbc83abb430b24b90894bad9de2...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 |
|---|