OpenTechnical

OT-2026-000002554

Publication integrity record

Lift cart with mechanically actuated automatic braking device

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-2026-000002554) never changes.

Identity and time

Publication numberOT-2026-000002554 · never reused
Internal UUID01a0a67d-5e5e-74ad-86b4-ca337951f111 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:49.151123Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002554
StatusPUBLIC

Content hashes

Canonical texta43863b4b54c849a24b1c5a59270b84d92e347c15b9b233b8aa5889880e05d5c
Markdowne4fc38e5b05da0f74ab569e7dec9d01b8fe05e35301fa49458c3dd53b4837ee7
PDF
Publication page11133f1514146bc72af0e884b66dc3a5a0e5bb4c2d7cfc30c6203ba010e2e55d
Manifest385642e4a739594b0f0a7f562b2c2d140c07f831236d6a5b90998a95e258a757

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
SignatureS+pHicB07iLtPlUBCCqTCF8VOVdAxSs4NYm6cG/52cKKl9lxn+/N/dpEzRNZhhWJ2MroCaeE0LkAIrU6HqahAA==
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

2026-10-01T00:41:28.981683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554
observed 11133f1514146bc72af0e884b66dc3a5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T00:41:28.906087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554/manifest.json
observed 385642e4a739594b0f0a7f562b2c2d14...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T00:41:28.803712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554/publication.md
observed e4fc38e5b05da0f74ab569e7dec9d01b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T00:41:28.655985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554/publication.txt
observed a43863b4b54c849a24b1c5a59270b84d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:30:33.598264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554
observed 11133f1514146bc72af0e884b66dc3a5...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:33.443184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554/manifest.json
observed 385642e4a739594b0f0a7f562b2c2d14...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:33.429197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002554/publication.txt
observed a43863b4b54c849a24b1c5a59270b84d...
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