OpenTechnical

OT-2026-000002255

Publication integrity record

Aerial work platform with linkage damping

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-2026-000002255) never changes.

Identity and time

Publication numberOT-2026-000002255 · never reused
Internal UUID01a0a67b-82d9-7911-a108-a3a55ae2935e · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:47.418284Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002255
StatusPUBLIC

Content hashes

Canonical text8d02796aa11868d987d667f6b7266c5bc19553b487e1fc7a46ffb48281242c32
Markdown8b3b779bcd348d963a2f92e7ffd3f98baf08e2f693fc0fb784e9da229597a7ba
PDF
Publication pagec856443291211b4c9f08771842e3b148097fd85bb483d28a5bda772dbaa0fb42
Manifest7b7aa12e0c28658c055c84682f3afe90edfe4d4b5af476859956b25f098794de

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
SignaturePwergFkGFflQ9uO7HY7+KRTCIc1OSrOyZhkecQSbDz1gyTovdvki6IOZNsOWIGeAc1HEk/IAdP8XDpw7IZoPCw==
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

2026-10-17T08:41:38.821745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255
observed c856443291211b4c9f08771842e3b148...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-17T08:41:38.773803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255/manifest.json
observed 7b7aa12e0c28658c055c84682f3afe90...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-17T08:41:38.727043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255/publication.md
observed 8b3b779bcd348d963a2f92e7ffd3f98b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-17T08:41:38.536175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255/publication.txt
observed 8d02796aa11868d987d667f6b7266c5b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:40:35.524570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255
observed c856443291211b4c9f08771842e3b148...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:35.495221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255/manifest.json
observed 7b7aa12e0c28658c055c84682f3afe90...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:35.481590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002255/publication.txt
observed 8d02796aa11868d987d667f6b7266c5b...
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