OpenTechnical

OT-2026-000001384

Publication integrity record

System and method for calibration of humanoid robots

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-2026-000001384) never changes.

Identity and time

Publication numberOT-2026-000001384 · never reused
Internal UUID01a0a675-c2df-796c-b625-9808b52de02d · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:05:30.592540Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001384
StatusPUBLIC

Content hashes

Canonical text9a217a49cd0d6924620add0b3abd21e0b25687bd96be1d0ba7b61410ba1f778c
Markdown59d3681302a92f1b49babaa5f3f1dfa63fabf9e7908a9c578632bf8b50a8cddb
PDF
Publication pagee2370ad00aad8540f8b2dc4b1565aae5a7b1bb0063b9d1bfa0a12e0a7377e535
Manifest7491f8b4210cd51bf6fc4fff41fba312acaf06c2f223918e1f554bbcfc8aadf7

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
SignatureExwKf80TxSrYhy21gc3tvoawSb2AW8j96t+OBIqMbGxw6+42/DIAfa50nKTVrsKF/v1oeNdSZrK0YzmiYhDICQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-10-14T00:41:27.344744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384
observed e2370ad00aad8540f8b2dc4b1565aae5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T00:41:27.273760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384/manifest.json
observed 7491f8b4210cd51bf6fc4fff41fba312...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T00:41:27.147591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384/publication.md
observed 59d3681302a92f1b49babaa5f3f1dfa6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T00:41:27.050267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384/publication.txt
observed 9a217a49cd0d6924620add0b3abd21e0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T08:41:33.454845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384
observed e2370ad00aad8540f8b2dc4b1565aae5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T08:41:33.410422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384/manifest.json
observed 7491f8b4210cd51bf6fc4fff41fba312...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T08:41:33.355884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384/publication.md
observed 59d3681302a92f1b49babaa5f3f1dfa6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T08:41:33.180943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001384/publication.txt
observed 9a217a49cd0d6924620add0b3abd21e0...
fetched by grabo-systems from 34.44.131.203, 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