OpenTechnical

OT-2026-000001684

Publication integrity record

Magnetic coupling device

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-2026-000001684) never changes.

Identity and time

Publication numberOT-2026-000001684 · never reused
Internal UUID01a0a677-b6d9-72c1-ab12-312c347ca930 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:38.585957Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001684
StatusPUBLIC

Content hashes

Canonical text9c7d45fcabec92f0f6d6f88a06bd8a17d11f2181579817fd455f95d58414a778
Markdownd27dff7099380b288fd9edb0e7aa9e268d4b4a6fc6c88c652224c17e250c8013
PDF
Publication page241e020efcfed9fba0a052e3562653bc56f0915b60cc9d8c7ad67a10feaa2261
Manifest485e2629ba04cd3b3fa3cbbd277c105909d1b00d6ac5370e0f133543a4a132dc

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturekjNBXUo32LBgActejr1+ubSGW5uH1uQBwFzoqYoCB2+yPblNwdnvTx+fWZkYECqNKlWWea5pA6rVNXuyc4umCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-16T08:44:17.242699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684
observed 241e020efcfed9fba0a052e3562653bc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:16.946876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684/manifest.json
observed 485e2629ba04cd3b3fa3cbbd277c1059...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:16.709139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684/publication.md
observed d27dff7099380b288fd9edb0e7aa9e26...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:16.403173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684/publication.txt
observed 9c7d45fcabec92f0f6d6f88a06bd8a17...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:00:14.167553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684
observed 241e020efcfed9fba0a052e3562653bc...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:14.134401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684/manifest.json
observed 485e2629ba04cd3b3fa3cbbd277c1059...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:13.990411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001684/publication.txt
observed 9c7d45fcabec92f0f6d6f88a06bd8a17...
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 archivePending 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-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent