OpenTechnical

OT-2026-000000751

Publication integrity record

Monitoring an operating condition of an HVAC flow regulator

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-2026-000000751) never changes.

Identity and time

Publication numberOT-2026-000000751 · never reused
Internal UUID01a0a673-c7d0-7b2a-ad29-a26d35eca4da · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:20.784964Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000751
StatusPUBLIC

Content hashes

Canonical text7a837838bd9ff866afba0653782c69e3302c1943cca8a5031ac4ff67aa586640
Markdown95b4504975868e0c6bb3a235dafe3fe479e906a4da0e3fe559b8ae0247754b60
PDF
Publication paged0d0f84998fffe9cb5f5db7115ee86649a2857834a293a3c2374c45aaf9eb5e0
Manifest6cbe91191c7ae1a7571f6fbc0202d9cee073c875824b08c4411dfe9b079e1031

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
Signaturej25zr+EJNC+pNiVyp8Hxc3choP0Ga+SXHUwhVEmzXV80oha2J/jrQ+qUQztIMAeK8O4ylbQqBW7SBDcKa6LeCg==
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

2026-09-15T20:40:08.498347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000751
observed d0d0f84998fffe9cb5f5db7115ee8664...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:08.468911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000751/manifest.json
observed 6cbe91191c7ae1a7571f6fbc0202d9ce...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:08.342835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000751/publication.txt
observed 7a837838bd9ff866afba0653782c69e3...
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