OpenTechnical

OT-2026-000002840

Publication integrity record

Joint structure for 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-2026-000002840) never changes.

Identity and time

Publication numberOT-2026-000002840 · never reused
Internal UUID01a0a67f-168b-78f7-b2ca-42988111df5f · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:15:41.835698Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002840
StatusPUBLIC

Content hashes

Canonical textdda00e3c2ca6f525184d7a16548330707af26f31261a7b98dfe2d7db8c5881e7
Markdown009da0291bc6dabd5b1b733b372e59ad325271bbea25920845548807169f656c
PDF
Publication pagea51028699feff59f05d8bcd3d16667741ecd2f85ef0b9584d9b258c442c9b89a
Manifest3d78cd1fb216ad58a3161321b3eccdd69d118e6178394e66b72a55196123dba5

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
Signature1V2a+FmvlolkpY+y/55MU8DDH6vjqsj15TsrLrKkqcCvn0XavdvJGiametOjvn1bZGTfBaTZNlbId5uBO+6IAg==
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

2026-09-15T19:20:27.718667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002840
observed a51028699feff59f05d8bcd3d1666774...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:27.691809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002840/manifest.json
observed 3d78cd1fb216ad58a3161321b3eccdd6...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:27.678826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002840/publication.txt
observed dda00e3c2ca6f525184d7a1654833070...
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