OT-2026-000003175
Publication integrity record
Structure for joining impeller to rotatable shaft
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-2026-000003175) never changes.
Identity and time
| Publication number | OT-2026-000003175 · never reused |
|---|---|
| Internal UUID | 01a0a698-f22c-7032-9b53-ce1ab51efe23 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:43:56.460388Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003175 |
| Status | PUBLIC |
Content hashes
| Canonical text | 38fdd1da8b7e4a43618a5b015f2b7a852d160a29973bf2ea7da18c89dd9e519e |
|---|---|
| Markdown | d6018812187eb40e94482caf768ebc46e7aa249a8376bff86451cf2198e570ee |
| Publication page | 9bc5fcc1a528856fd3998ceae66d7e4e40c6cd3a3f7b85f76fc8e6a94d6ad8f7 |
| Manifest | c5501a1e8d439ab3985c45facc5bd78b4447c8f183f29777b3f54571a6b26056 |
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 | nf/bm8HNh3qhQm/kScBthIe/ZzeaL8IL5/Gc0Ra+OaVOW1/q44RMcdyK4OrZLvqTxJbyXLev3XZTC/9c23dtAA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:47:02Z batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof root 713cd89b73be422b38f7894d4fb6a755... |
|---|
Independent retrieval
| 2026-09-15T19:50:05.922912Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003175observed 9bc5fcc1a528856fd3998ceae66d7e4e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:50:05.896136Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003175/manifest.jsonobserved c5501a1e8d439ab3985c45facc5bd78b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:05.883509Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003175/publication.txtobserved 38fdd1da8b7e4a43618a5b015f2b7a85...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 |
|---|