OpenTechnical

OT-2026-000002925

Publication integrity record

Crane and mounting assembly structure

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-2026-000002925) never changes.

Identity and time

Publication numberOT-2026-000002925 · never reused
Internal UUID01a0a67f-87ea-7e81-8a1e-3a3ca9e28ae4 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:16:10.858402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002925
StatusPUBLIC

Content hashes

Canonical text8be731f84ae8ccd04592e01971278d2c282c88eace0ea10fe4c22910a24dca95
Markdown257279cb87b9abee6dcb2a29de4193331970afbf774ee83e44a88b0909d249d6
PDF
Publication page26dbb09cded3bdd55a9f5bf993d90d321230e55ddbc4003ac9613112791eebb4
Manifest2ced272c7f825f346a05ec8733e1043bd4be502b23e272d4789a344905279d69

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
SignatureHlAf72ZsvsO/lQf40V6X63cTwIDDarhHEQZOpRn2vkw73nHKN4x1bSI6yOYDBhcjbe1/iKFdi0pm9Sl+Dp+0Dg==
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

2026-10-27T04:23:07.259084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925
observed 26dbb09cded3bdd55a9f5bf993d90d32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-27T04:23:07.240041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925/manifest.json
observed 2ced272c7f825f346a05ec8733e1043b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-27T04:23:07.227884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925/publication.md
observed 257279cb87b9abee6dcb2a29de419333...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-27T04:23:06.743107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925/publication.txt
observed 8be731f84ae8ccd04592e01971278d2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T19:20:18.691987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925
observed 26dbb09cded3bdd55a9f5bf993d90d32...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:18.659706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925/manifest.json
observed 2ced272c7f825f346a05ec8733e1043b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:18.644430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002925/publication.txt
observed 8be731f84ae8ccd04592e01971278d2c...
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