OpenTechnical

OT-2026-000003200

Publication integrity record

Articulated aerial device with hydraulic upper boom compensation

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-2026-000003200) never changes.

Identity and time

Publication numberOT-2026-000003200 · never reused
Internal UUID01a0a69c-f41c-73c1-97a6-5270f5f9639a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:48:19.100647Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003200
StatusPUBLIC

Content hashes

Canonical text02b965175e743165400be7447a2d1c143b5990d3650e1950c67d2fdaf487ad21
Markdownc68dff20ffe5a377168b0457f095174477afc1beeb4f8f81125013ec8515c2ac
PDF
Publication page02aeb4b3393f0f42c89b9361d472ad542d6e6bbdfeeeabd8a77638130e6489ae
Manifestdd5190749aa0d58ca2ea9eba5293dbca9eacf54debdbc4a5cb3c49cb62ed07aa

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
SignatureI6lVIcsNTCV3LSadY4mZgi4xzhng5kRbbc+HfXWkVb/TvJOZKVsGOG6VON+Dbb7lkTW1OLMQ3Zb0RBmYgigGDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:07:03Z
batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof
root d42f3e627490c26ffd144bf37543fecf...

Independent retrieval

2026-09-16T08:43:33.402981ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200
observed 02aeb4b3393f0f42c89b9361d472ad54...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:32.936139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200/manifest.json
observed dd5190749aa0d58ca2ea9eba5293dbca...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:32.246833ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200/publication.md
observed c68dff20ffe5a377168b0457f0951744...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:31.666433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200/publication.txt
observed 02b965175e743165400be7447a2d1c14...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:50:03.150473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200
observed 02aeb4b3393f0f42c89b9361d472ad54...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:03.122968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200/manifest.json
observed dd5190749aa0d58ca2ea9eba5293dbca...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:03.112536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003200/publication.txt
observed 02b965175e743165400be7447a2d1c14...
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