OpenTechnical

OT-2026-000000404

Publication integrity record

Electric valve control device and electric valve 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-2026-000000404) never changes.

Identity and time

Publication numberOT-2026-000000404 · never reused
Internal UUID01a0a673-5226-76cc-b911-8b256da18afd · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:50.662599Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000404
StatusPUBLIC

Content hashes

Canonical text75f2ba82ed77c82e47ba578425514312a73697136fdaca84aa866318e47c42d8
Markdowneecba98a84c8a23ee6b454bf45be3552df887633428bb980cc7005f55f750292
PDF
Publication page2c2149a3e3e9bc25a9d0f2f3cc9685a448fa60b62f6fb2c45fb5effef5ac434a
Manifest30fdead94dccd608bef3a4f445475afe31c7a414f76747b2b4188b035cbad36f

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
Signatureo8r5Ebhz0Z8sv4vJTrrSEWjJgomQRJWWM+yYvef9Q8NwHHeRmcxZK/kSUeVdC+hA5bgYQSSEh4boNjAHWBM+Aw==
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

2026-09-18T04:23:05.367853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404
observed 2c2149a3e3e9bc25a9d0f2f3cc9685a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-18T04:23:05.353658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404/manifest.json
observed 30fdead94dccd608bef3a4f445475afe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-18T04:23:05.336103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404/publication.md
observed eecba98a84c8a23ee6b454bf45be3552...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-18T04:23:05.211180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404/publication.txt
observed 75f2ba82ed77c82e47ba578425514312...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T20:50:13.777885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404
observed 2c2149a3e3e9bc25a9d0f2f3cc9685a4...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:13.746434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404/manifest.json
observed 30fdead94dccd608bef3a4f445475afe...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:13.611197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000404/publication.txt
observed 75f2ba82ed77c82e47ba578425514312...
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