OpenTechnical

OT-2026-000002170

Publication integrity record

Lifting mechanism and robot

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-2026-000002170) never changes.

Identity and time

Publication numberOT-2026-000002170 · never reused
Internal UUID01a0a67b-010b-7049-939d-20ba5a3b518a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:14.187535Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002170
StatusPUBLIC

Content hashes

Canonical text687cfa4b6b97fcc18d959fd4a0f4be595e54d897f43cc010c4572f897fd5df5d
Markdown4715300153d6bde2a62a9b4028e96e390845ed3cdd092ce44826961b3779d345
PDF
Publication pagedcc090f6a7cba93027e3265374a8e914074d9eaf644bf752e5ac9611f5196179
Manifest437d08decaf78841d7059329c31b6af734b87f4c05a67edeb885ce7f7d204395

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
SignatureJvBUC596lZdCoCo53dlXM1XK0iit2BG7MzkGYawPBX1a1+MhpX5X+FZzNLs9Xy64iE+GUVUww8x0jcF55dQPBQ==
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

2026-09-16T08:41:23.218728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170
observed dcc090f6a7cba93027e3265374a8e914...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:41:22.908326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170/manifest.json
observed 437d08decaf78841d7059329c31b6af7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:41:22.645567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170/publication.md
observed 4715300153d6bde2a62a9b4028e96e39...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:41:22.155357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170/publication.txt
observed 687cfa4b6b97fcc18d959fd4a0f4be59...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:50:17.625893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170
observed dcc090f6a7cba93027e3265374a8e914...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:17.599965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170/manifest.json
observed 437d08decaf78841d7059329c31b6af7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:17.588620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002170/publication.txt
observed 687cfa4b6b97fcc18d959fd4a0f4be59...
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