OT-2026-000003439
Publication integrity record
Air pressure pick-up tool
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-2026-000003439) never changes.
Identity and time
| Publication number | OT-2026-000003439 · never reused |
|---|---|
| Internal UUID | 01a0a6c0-ff0d-7d83-8922-c3dc92dd11ca · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:27:41.197775Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003439 |
| Status | PUBLIC |
Content hashes
| Canonical text | 30b91145ca98b59f20ee37de72ee9eea7cef819950160e089a41e588b728f913 |
|---|---|
| Markdown | 26fefc2688060fa1c0daf21b960cdd00e92f3f753d04149898c7f5f6ab4db487 |
| Publication page | 5cc28cc5cca7d69fef86e8b7cf75dec9e13900994753a1fd02e64378659029f5 |
| Manifest | 3b3b8b791195020f2bedd514faec1fda1c32ecf2b9910c7a83634e54162f7301 |
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 | y2A+XcQVFv5/zeyBGGrkuC/Uzs7tHNJK3s2ma8F1YySBK88S8vxnoBlmX+H73ccECXdNGYP9KyhS8Tabl7WKAg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:36:25Z batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof root 40fdb380c9f41bd58bb35c455dde2c7d... |
|---|
Independent retrieval
| 2026-09-15T20:30:05.229382Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003439observed 5cc28cc5cca7d69fef86e8b7cf75dec9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:30:05.192830Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003439/manifest.jsonobserved 3b3b8b791195020f2bedd514faec1fda...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:05.180095Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003439/publication.txtobserved 30b91145ca98b59f20ee37de72ee9eea...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 |
|---|