OpenTechnical

OT-2026-000003343

Publication integrity record

Pneumatic apparatus for lifting and lowering

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-2026-000003343) never changes.

Identity and time

Publication numberOT-2026-000003343 · never reused
Internal UUID01a0a6b3-8a1b-722b-b9de-64dcd2105271 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:12:59.292138Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003343
StatusPUBLIC

Content hashes

Canonical text127571b055b4a3cd3cd3407d64d4d6b93a608900aaf15f8b9013d71206151202
Markdown3f2a78530202e50646f982143cea8c1396e7f1f6c929c69741860c5ccc55501f
PDF
Publication page50ebd55cd295d2afa309af1c9594c4b735ee3e648aeae851638b7e8e83415b64
Manifestb3e1596c5047911c527d7d1db3a9054d279e5c22a9ed5f895fe5448d72cf6379

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
SignatureY8HyLmDqQoSRS+/9pC3bhr/miel/nCYmJsHZ+bXv8TQCZMdkLAYeQXqlTQf0lSsockt8oA+RfyOAPEKwMlPmCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:27:02Z
batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof
root 0d980c01ea01b2d7f69845e24a85320c...

Independent retrieval

2026-09-16T04:43:16.838043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343
observed 50ebd55cd295d2afa309af1c9594c4b7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:43:16.620276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343/manifest.json
observed b3e1596c5047911c527d7d1db3a9054d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:43:16.488327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343/publication.md
observed 3f2a78530202e50646f982143cea8c13...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:43:16.256460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343/publication.txt
observed 127571b055b4a3cd3cd3407d64d4d6b9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:20:07.367395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343
observed 50ebd55cd295d2afa309af1c9594c4b7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:07.334008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343/manifest.json
observed b3e1596c5047911c527d7d1db3a9054d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:07.319748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003343/publication.txt
observed 127571b055b4a3cd3cd3407d64d4d6b9...
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