OT-2026-000002771
Publication integrity record
Variable field magnetic couplers and methods for engaging a ferromagnetic workpiece
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-2026-000002771) never changes.
Identity and time
| Publication number | OT-2026-000002771 · never reused |
|---|---|
| Internal UUID | 01a0a67e-ae23-7b01-9ac3-b71f27b83f97 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:15.108112Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002771 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5c54f3f48e1a3dc2579130684e63bcb17218f82122edfc55fd57d990a556e560 |
|---|---|
| Markdown | eedf1e1c361673c14174915d72de4e37de15033b9338611e13a92b230b85cceb |
| Publication page | b8e8ffb8778ff5be023cf549db61cfe7b57520ce3f821d598a89a06802c14e5a |
| Manifest | f20958a63c6b85f49e8acd52d59517b987bd9ed1f4723e9a5e3ba4e9492324c9 |
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 | DdOOLRkP7sNDPIt+GCSws/PAPwZBrO7P03vUE7z6O76Kzk/6NMrr4F/JwDehdO7Mks1Ct98HiiRgtGFCTfxfBQ== |
| 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
| 2026-09-15T19:30:06.586770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002771observed b8e8ffb8778ff5be023cf549db61cfe7...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:30:06.432466Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002771/manifest.jsonobserved f20958a63c6b85f49e8acd52d59517b9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:06.418006Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002771/publication.txtobserved 5c54f3f48e1a3dc2579130684e63bcb1...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 |
|---|