OpenTechnical

OT-2026-000002129

Publication integrity record

System for magnetic mounting and registration of sensors to grid ceilings

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-2026-000002129) never changes.

Identity and time

Publication numberOT-2026-000002129 · never reused
Internal UUID01a0a67a-c57b-7d5f-88b9-04611ac2e4d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:10:58.940408Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002129
StatusPUBLIC

Content hashes

Canonical textc516653c108b27cb5e1fc7b55d623f11982b39addb718b9ddd9ddf504ae9d4f3
Markdown3117f71441303794ea0dccf1b9575e4a36b3dcda3daf51396c95aada3cc91807
PDF
Publication pagecfb6e572f233b49750365ed9a06eced3c98742046378fda417c7c777be037569
Manifest0eaba7880b51de35736971e5b2b9eb7bf523a759b2f3bb86838ee32d71257639

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
SignaturepBuxfJMJzFms0SRez8WsEK+GZRA5JCQMWGXB+6D1sHoytjEl/kztk4ItApEkg12Aq0saRspqNjxxXFEhdyW0Dg==
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

2026-09-17T00:42:58.214655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129
observed cfb6e572f233b49750365ed9a06eced3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T00:42:57.869218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129/manifest.json
observed 0eaba7880b51de35736971e5b2b9eb7b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T00:42:57.533705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129/publication.md
observed 3117f71441303794ea0dccf1b9575e4a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T00:42:57.225494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129/publication.txt
observed c516653c108b27cb5e1fc7b55d623f11...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:50:22.109482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129
observed cfb6e572f233b49750365ed9a06eced3...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:22.079251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129/manifest.json
observed 0eaba7880b51de35736971e5b2b9eb7b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:22.066376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002129/publication.txt
observed c516653c108b27cb5e1fc7b55d623f11...
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