OpenTechnical

OT-2026-000002439

Publication integrity record

Loading dock area safety system utilizing pulsed magnetic fields

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-2026-000002439) never changes.

Identity and time

Publication numberOT-2026-000002439 · never reused
Internal UUID01a0a67c-ad5d-7559-9b6e-582f19675664 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:03.837579Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002439
StatusPUBLIC

Content hashes

Canonical text954891d40e8d38ba1e5744c770f735cae73432762c44de34ee71ec23781a0925
Markdown461c2578e8f74caa2cb37eada3c164463581ecb407fb0580a6e3ce71eaf0ed39
PDF
Publication page0b198597f8028f3221743d726132804ceb659f203250283f396f67c69593a295
Manifest4dd9e2df5e23d6e6ab373c53a71b26c36303f0e82ddba08ab4f1ad8c3a412e8b

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
SignaturedDsqZjOZT12NLGFowiaSBosfaQUMDTM4f14iqbI3Js6k77ODpCry1XjZnxw6mpBD9DikaVUJbZepFgSD9d2UBA==
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

2026-09-19T20:42:14.619047ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439
observed 0b198597f8028f3221743d726132804c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T20:42:14.472932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439/manifest.json
observed 4dd9e2df5e23d6e6ab373c53a71b26c3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T20:42:14.346755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439/publication.md
observed 461c2578e8f74caa2cb37eada3c16446...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T20:42:14.134436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439/publication.txt
observed 954891d40e8d38ba1e5744c770f735ca...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.187074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439
observed 0b198597f8028f3221743d726132804c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.171195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439/manifest.json
observed 4dd9e2df5e23d6e6ab373c53a71b26c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.155382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439/publication.md
observed 461c2578e8f74caa2cb37eada3c16446...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.100092ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002439/publication.txt
observed 954891d40e8d38ba1e5744c770f735ca...
fetched by instance-3.rotem.ai from 34.69.0.72, 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