OpenTechnical

OT-2026-000001578

Publication integrity record

Automated cavity filter tuning using machine learning

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-2026-000001578) never changes.

Identity and time

Publication numberOT-2026-000001578 · never reused
Internal UUID01a0a676-efc7-7d19-b986-51fe319c0b26 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:06:47.624132Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001578
StatusPUBLIC

Content hashes

Canonical textafe0f775ca6db29560acae61df40429c8db73f8b9635e6d7c808c5954c2aa50a
Markdown7485ed11faa84fb23efcbbebd98345c8bb02ec4ae6c6017b97cff0d6e6f4104d
PDF
Publication page49a4085b48fca797903b4a66305beee16713974815883beeafbf3cf018f04135
Manifest7d09cf801c7dd97f8f67f4b3c43b7a35c73947f6305cdd34b28bec9ad769b2ee

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
SignatureOwgrie9E1A0pzi4BwgMPy1806QIZjlaUU0oaE9nqAdVWS6rO3q9kJu+KpSy6TVDXR2nab5t7YAvIOcNxpXorBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-15T20:00:27.666840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001578
observed 49a4085b48fca797903b4a66305beee1...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:27.632927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001578/manifest.json
observed 7d09cf801c7dd97f8f67f4b3c43b7a35...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:27.491570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001578/publication.txt
observed afe0f775ca6db29560acae61df40429c...
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