OpenTechnical

OT-2026-000002420

Publication integrity record

Modular utility system

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-2026-000002420) never changes.

Identity and time

Publication numberOT-2026-000002420 · never reused
Internal UUID01a0a67c-7eea-739d-ad5f-0678f9f00365 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:12:51.947412Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002420
StatusPUBLIC

Content hashes

Canonical textbb28810031680add1aefa0f8dc9aedcba97c504b825d1633d110a78e65a1fa77
Markdown4874a9a5931dd9c8e56994bb8781acd92dcff117f11fead156c1fe433b15d31f
PDF
Publication page2c9d256b75d0dfa0203ee1ed832c11e9833351f454e4d55b35ff87088d12c4b9
Manifest378fdbf44a47c35415a3c33c2f8dd84e8a0c4cbb52f254600cfeba103c224fea

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
SignatureF96Tahd0VO+qZM2oJ+U2B+7OdLwsI4/phH/VtyeK3pzwbElnk+GecDLDRzLZ4/S8bXv5SdU/K5TOz2LNltSlAg==
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

2026-09-15T19:40:17.492640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002420
observed 2c9d256b75d0dfa0203ee1ed832c11e9...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:17.445925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002420/manifest.json
observed 378fdbf44a47c35415a3c33c2f8dd84e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:17.432870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002420/publication.txt
observed bb28810031680add1aefa0f8dc9aedcb...
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