OpenTechnical

OT-2026-000003092

Publication integrity record

Vacuum tightening 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-2026-000003092) never changes.

Identity and time

Publication numberOT-2026-000003092 · never reused
Internal UUID01a0a689-7b86-772d-9d8a-0426ca9533b7 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:27:03.046662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003092
StatusPUBLIC

Content hashes

Canonical textc99a1880e49f3e3c1ad5972b6bbc513165a96eaa2dc37e30694974700da07959
Markdownd5e9643842acad19f8196e0edbc47c7dc821a519c0fcbc43f010334d48c01a1f
PDF
Publication page77155a98f5dde6904e7b87cbac08d90351ea30c96b59d3c9eaf0ef95ba96477c
Manifest15218d7c30bb1cdfb2e5949fee04c81c27736f7f8cff5c6e4ce0e4ae103f028b

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
Signature0v76PSrP8tWnK8hEX4Jz0P8ZQz/Ua0PLLbaWjIOEJ8GrJoErzxd6fjIXNVkO3X51pb0OFhahos+RMTp30J4wBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:47:02Z
batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof
root 713cd89b73be422b38f7894d4fb6a755...

Independent retrieval

2026-09-15T19:30:03.913922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003092
observed 77155a98f5dde6904e7b87cbac08d903...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:03.875185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003092/manifest.json
observed 15218d7c30bb1cdfb2e5949fee04c81c...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:03.860975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003092/publication.txt
observed c99a1880e49f3e3c1ad5972b6bbc5131...
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