OT-2026-000003209
Publication integrity record
Device for coupling two shafts
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-2026-000003209) never changes.
Identity and time
| Publication number | OT-2026-000003209 · never reused |
|---|---|
| Internal UUID | 01a0a69e-5f18-7f70-84f4-07336d526df6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:49:52.024895Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003209 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7797fa78766d172367a66e8f9f2b8bc03d9f248fb7e3139436bbecfdb4dc6864 |
|---|---|
| Markdown | a37469493aa668f3bef106dc777aa22b4241fb7666963534b4b03e0c2f379b68 |
| Publication page | a22d31e6f2d2c2d9e0e530c85a002beda77d45e0c6087f0ea62088720102491a |
| Manifest | 6896e142620eb68064b688ccae01985cdbe1592a5ef4cb10ad7c8837742a21e9 |
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 | DJSe/ZhemUpkHCtOqVBay+2RwCycKd3Xm+gxU69fvMVd2Vr3gE6DkYLJ/Lbmwtvps9un12uCSbC1UVlmdXqBDQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-09-15T19:50:02.116269Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003209observed a22d31e6f2d2c2d9e0e530c85a002bed...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:50:02.086586Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003209/manifest.jsonobserved 6896e142620eb68064b688ccae01985c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:02.073821Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003209/publication.txtobserved 7797fa78766d172367a66e8f9f2b8bc0...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 |
|---|