OpenTechnical

OT-2026-000002195

Publication integrity record

Belt cleaning device for coal loading and unloading belt conveyor

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-2026-000002195) never changes.

Identity and time

Publication numberOT-2026-000002195 · never reused
Internal UUID01a0a67b-2604-70a3-900f-84e167214322 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:23.652368Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002195
StatusPUBLIC

Content hashes

Canonical text98b4e02d8abfd21c1287553d9f85ec8357f98624314713bc06f3bbb22b2dfe3f
Markdowna03f807db293befaad8089e4d21ec5ef7b1f4df9a6a2dc9ad8e486fa339b9c9e
PDF
Publication page3bccbec53ace040e66a5efa04e023e96cb4edf6a580cfe9e97bdfe3f33b69627
Manifesta67d495ba9d63d65be7574cf0a2dac76f0469e686aa50cc86bb41177efb467e0

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
Signaturelq57sQoc7kvs3jNiLm3yabhZ2Nwi/1qm6uVjL1pu1jpCQNh9/aCz1XB0HBq0a07SvLFdidlpBCJFaa1C/mymBw==
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

2026-09-15T19:50:14.875222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002195
observed 3bccbec53ace040e66a5efa04e023e96...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:14.843930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002195/manifest.json
observed a67d495ba9d63d65be7574cf0a2dac76...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:14.831626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002195/publication.txt
observed 98b4e02d8abfd21c1287553d9f85ec83...
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