OpenTechnical

OT-2026-000002655

Publication integrity record

Controlled resistance in backdrivable joints

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-2026-000002655) never changes.

Identity and time

Publication numberOT-2026-000002655 · never reused
Internal UUID01a0a67d-f880-7b07-b24f-1ae5720a41a5 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:14:28.608696Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002655
StatusPUBLIC

Content hashes

Canonical text700364ab239c73a7dfa41327ed029616abd870afcd141a737dfaea895708adf5
Markdown72af8d5ae561bb32d73666b01208c2c7d7538ad0e46a29385e61ea2b81abbb3c
PDF
Publication page91bfebe8a078fd3b98e8b14ae95413c678da1308af2ba426a4037983fb4e349f
Manifest4e9a3eef293cedacccbf81d4dd29085c3cddf9b2ae74190357d0a05ecd77f7b8

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
SignatureVYGDl2ie8fDY75FddYhFN6BD6gqP+6QOvc15q3DTAj87//MgyPHmzY6XzSEjcT2xqBYcAXP8Kf9Wr1OYXJcGCw==
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

2026-10-29T04:41:58.451039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655
observed 91bfebe8a078fd3b98e8b14ae95413c6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T04:41:58.393309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655/manifest.json
observed 4e9a3eef293cedacccbf81d4dd29085c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T04:41:58.334492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655/publication.md
observed 72af8d5ae561bb32d73666b01208c2c7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T04:41:58.103701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655/publication.txt
observed 700364ab239c73a7dfa41327ed029616...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:23:16.771472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655
observed 91bfebe8a078fd3b98e8b14ae95413c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:16.754220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655/manifest.json
observed 4e9a3eef293cedacccbf81d4dd29085c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:16.739508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655/publication.md
observed 72af8d5ae561bb32d73666b01208c2c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:16.699863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002655/publication.txt
observed 700364ab239c73a7dfa41327ed029616...
fetched by instance-3.rotem.ai from 34.69.0.72, 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