OpenTechnical

OT-2026-000001967

Publication integrity record

Conveying and drying systems for granulated materials

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-2026-000001967) never changes.

Identity and time

Publication numberOT-2026-000001967 · never reused
Internal UUID01a0a679-b8fe-74fd-b1d2-7162f7fa17c8 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:09:50.206756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001967
StatusPUBLIC

Content hashes

Canonical text7026b30359fbdcbb9fa8745e10eb8096657135976a38d26405aa0f1db9274ede
Markdown23154cacf6bbee7490e73e5a24c90a5bf13be3c185823c509172939193505bc0
PDF
Publication page16f68a94ec9387c804bf3414c0cff117738f64ddfae2d75ad6303085dbd6f3d0
Manifest514fd93d68d59522370616666225d58172de91d2f9450cabb418ada32897b441

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
Signature1IO3R6AHw0GzTs99Rq8nq0bbLQe5TNP/mf7ZydovXW1le8IfclPt5M0URaVvCE66A+3APNdgoMyLEPmQAKwQBg==
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

2026-09-15T19:10:05.945277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001967
observed 16f68a94ec9387c804bf3414c0cff117...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:05.917466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001967/manifest.json
observed 514fd93d68d59522370616666225d581...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:05.904336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001967/publication.txt
observed 7026b30359fbdcbb9fa8745e10eb8096...
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