OT-2026-000000262
Publication integrity record
Apparatus for ultrasonically measuring thin film thickness with retroreflector and method thereof
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-2026-000000262) never changes.
Identity and time
| Publication number | OT-2026-000000262 · never reused |
|---|---|
| Internal UUID | 01a0a673-2ab0-710d-a088-e61bf7269a66 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:40.560612Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000262 |
| Status | PUBLIC |
Content hashes
| Canonical text | 294ade109679e62a54c94d321432945169c458bda0a030219ea2260dbda138a5 |
|---|---|
| Markdown | f5d61fdd6c57804b9258220e4d21855bc60b8debc2a816578d6d1f51923236e3 |
| Publication page | 233acff01fae4c646e3865a0f2172d56cccd51546b28cfb81ef2e80b5e5ad569 |
| Manifest | 3eef902dc4e858e9e86e670fa65a9b69f7ab63fc9fb6ece35880e005ab2d06cb |
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 | FUI0NaYjP2wFiggYjdp4dwBiIA4zkjj9YrHlK+vV9tEPsPnicoFo38lGcz8tSY63ZHgCli639KQjxHd5WerEAA== |
| 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
| 2026-09-15T20:50:30.527082Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000262observed 233acff01fae4c646e3865a0f2172d56...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:30.495614Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000262/manifest.jsonobserved 3eef902dc4e858e9e86e670fa65a9b69...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:30.360281Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000262/publication.txtobserved 294ade109679e62a54c94d3214329451...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 |
|---|