OpenTechnical

OT-2026-000003420

Publication integrity record

Bypass mode control for high pressure washing 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-2026-000003420) never changes.

Identity and time

Publication numberOT-2026-000003420 · never reused
Internal UUID01a0a6bf-0610-7e9a-a4eb-4251f9247595 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:25:31.921066Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003420
StatusPUBLIC

Content hashes

Canonical textbafceabd6d09516443f349f0dc07de4f7ff4282c5d4737c005f78fbd90bd80b8
Markdowna1f63c5359533d46ab2f7d9fe1b856de853f37a9593885807b860a0a2509fc2a
PDF
Publication page091c4f9446aeeb64e479e6fb3e7c921e547952c788c750b0e23fae5e740cabe3
Manifestb93f08e1afaa596fb9a2aa48c5a6f611769a34bc7d25cc6821c57c4a975c4ff2

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
SignatureWgxB9QtzuAajhcAbjRMqz/gQctbyFpzecY65WAYnwrTLsZq5AY5HOic4D2597VIwi/x1t6vxh7pTbaGffvkZAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:27:02Z
batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof
root 0d980c01ea01b2d7f69845e24a85320c...

Independent retrieval

2026-10-09T00:42:05.795341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420
observed 091c4f9446aeeb64e479e6fb3e7c921e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-09T00:42:05.643279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420/manifest.json
observed b93f08e1afaa596fb9a2aa48c5a6f611...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-09T00:42:05.557213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420/publication.md
observed a1f63c5359533d46ab2f7d9fe1b856de...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-09T00:42:05.376623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420/publication.txt
observed bafceabd6d09516443f349f0dc07de4f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T20:41:12.574545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420
observed 091c4f9446aeeb64e479e6fb3e7c921e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T20:41:12.500566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420/manifest.json
observed b93f08e1afaa596fb9a2aa48c5a6f611...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T20:41:12.436118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420/publication.md
observed a1f63c5359533d46ab2f7d9fe1b856de...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T20:41:12.341594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003420/publication.txt
observed bafceabd6d09516443f349f0dc07de4f...
fetched by grabo-systems from 34.44.131.203, 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