OpenTechnical

OT-2026-000002052

Publication integrity record

New harmonic reducer, flexspline assembly 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-2026-000002052) never changes.

Identity and time

Publication numberOT-2026-000002052 · never reused
Internal UUID01a0a67a-4cfb-7244-bfcd-ec8a459bff90 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:10:28.091691Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002052
StatusPUBLIC

Content hashes

Canonical text889d78105b85ab3ab49f51278089481eeed6f849ef9cf83f5852dc0211ca2ff5
Markdown3035752e2867ad2b2b466aa75cc7d48c7eadca7e676e6ad7e8e2d390788ea528
PDF
Publication page722bbd44dde40a700020a0343402ba29e2b5000efe387bc223cdf0b9752393aa
Manifesta122387bcfa521738fc32448d7cdbc04d4790eddd1f8a9956c77f71cc016cc3e

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
SignatureD1oiXIWxI85J7A6hSS/UaBv+KKku55+e+ARNkNEQmN28fgGH0QfpRTHP86kFQOiwgzTlPS/CFq+u6XX1j3KuAw==
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

2026-10-25T04:41:12.327031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052
observed 722bbd44dde40a700020a0343402ba29...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T04:41:12.260953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052/manifest.json
observed a122387bcfa521738fc32448d7cdbc04...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T04:41:12.192198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052/publication.md
observed 3035752e2867ad2b2b466aa75cc7d48c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T04:41:11.997420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052/publication.txt
observed 889d78105b85ab3ab49f51278089481e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:50:30.379246ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052
observed 722bbd44dde40a700020a0343402ba29...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:30.344712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052/manifest.json
observed a122387bcfa521738fc32448d7cdbc04...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:30.332327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002052/publication.txt
observed 889d78105b85ab3ab49f51278089481e...
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