OpenTechnical

OT-2026-000002007

Publication integrity record

Vacuum lifting arrangement and lifting tube for use therein

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-2026-000002007) never changes.

Identity and time

Publication numberOT-2026-000002007 · never reused
Internal UUID01a0a67a-03ea-731f-a8c2-ac887bdb74fe · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:10:09.386799Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002007
StatusPUBLIC

Content hashes

Canonical textfa7a0e614f7beeb8a4c7d8315da3c251b6319f5c50b5a9758ea374322c9b0469
Markdownbeb0a881f4b12695f8600c363a05cd8d7623b1611408405b5440f1b160dd6e04
PDF
Publication page68879021c0111b5d6067424a1b1435cda82a0a3691261db4f4f848a7cc6ddcef
Manifestba51de9474435d98eaf967a8c614675f4a44df9dc7595a5c7fbb2ee17559f82d

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
SignaturefwKRsFdlcDFpTqRzaTmqKtm0imYX0yc6bSbwMM4LrEZQoslX7t31DY8etQDHE6nxvShY84/4vNbzLNdnRtaLAg==
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

2026-09-15T20:00:10.991734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002007
observed 68879021c0111b5d6067424a1b1435cd...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:10.956597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002007/manifest.json
observed ba51de9474435d98eaf967a8c614675f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:10.941837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002007/publication.txt
observed fa7a0e614f7beeb8a4c7d8315da3c251...
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