OT-2026-000003020
Publication integrity record
Shaft-hub connection having a shaft with a feather key groove, a hollow shaft, and a feather key, and method for producing a shaft-hub connection
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-2026-000003020) never changes.
Identity and time
| Publication number | OT-2026-000003020 · never reused |
|---|---|
| Internal UUID | 01a0a680-1784-761b-ba80-a974532f71c0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:16:47.620378Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003020 |
| Status | PUBLIC |
Content hashes
| Canonical text | be9e4f1dfde8f3a21ebaa5b13d614cf952b3a7652e931bf8c25c9e55923435fe |
|---|---|
| Markdown | f2c116491da2f27cdddec8da849f867a32ffdc35b9f6e0774b0723c2fc00bf2f |
| Publication page | c44a9e7b2377a60a19a554a91fb291ba08de354faa22d0a560e0b768c72761bb |
| Manifest | 4293569a03f9bf10f82306e4a12561e4cedb430b3ef0c2feb84528c8a318c0e2 |
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 | n7iJgo3JTWnmRmXT5CSgBW1sICAzVfQhSZIz0wAuYybgTYB9BfYWwPhP7UWKLCmczCaEAMEY2vWVORPyFQPGCA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-15T19:20:08.149322Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003020observed c44a9e7b2377a60a19a554a91fb291ba...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:20:07.994649Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003020/manifest.jsonobserved 4293569a03f9bf10f82306e4a12561e4...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:07.981236Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003020/publication.txtobserved be9e4f1dfde8f3a21ebaa5b13d614cf9...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 |
|---|