OpenTechnical

OT-2026-000002517

Publication integrity record

Method for products packaging

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-2026-000002517) never changes.

Identity and time

Publication numberOT-2026-000002517 · never reused
Internal UUID01a0a67d-27ab-745b-b742-797e32167b70 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:35.147460Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002517
StatusPUBLIC

Content hashes

Canonical texta60a5422148df10ae0f94d46aaef51592f92daf0e523bfbe3aa535c68edb3685
Markdown070c1fb8cf6bc5342df135b0c0126c879d12f438b7a63fc9901249f3fda80269
PDF
Publication pageb14148a48207122115a3087e1524d6c106d771e16aeb96a7175551a978368266
Manifest5fa58b718e61f6e5efb44a80b7ffdabec5c874a87936d25a11c0166bb2f688bb

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
Signature1OJrdjlX7y5hM2/z7p52ul53nFDRavHbSu8XNaaNUsdfePzzxZJ/xp4jmv5nGRfhbfBuAWqOo4VChmdezvQvCg==
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

2026-09-15T19:30:38.091469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002517
observed b14148a48207122115a3087e1524d6c1...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:37.940192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002517/manifest.json
observed 5fa58b718e61f6e5efb44a80b7ffdabe...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:37.928866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002517/publication.txt
observed a60a5422148df10ae0f94d46aaef5159...
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