OpenTechnical

OT-2026-000002021

Publication integrity record

Robot cleaner, station and cleaning 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-2026-000002021) never changes.

Identity and time

Publication numberOT-2026-000002021 · never reused
Internal UUID01a0a67a-1a45-7d60-b6ed-d67e14bf0d6a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:10:15.109528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002021
StatusPUBLIC

Content hashes

Canonical textd92dd12ef09025263c1f15baf233e895ea331e03a3ba1818001816e65a651285
Markdowneee61b69996a180dd9cb0de94078f812cb428ce99f8160abd66cbc137c764c9b
PDF
Publication page9e66b875bcbf93ef2898cf49a9bc51b7bcc99570166493c684a467da7193146d
Manifest701a4a7f6d67c47f5794b6435da7f41fa53db201447490022678ef45ef83b33f

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
SignaturePKp9zyBwtdNmpHrxyX8vlYoFuMmKQ7lLh5TI7oBDOCtUhS0Z5GVFFJwm31w65f1VPzGiYYtCVQzQQRm/YWM4CA==
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

2026-09-15T19:50:34.148457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002021
observed 9e66b875bcbf93ef2898cf49a9bc51b7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:34.118870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002021/manifest.json
observed 701a4a7f6d67c47f5794b6435da7f41f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:34.104524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002021/publication.txt
observed d92dd12ef09025263c1f15baf233e895...
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