OpenTechnical

OT-2026-000001859

Publication integrity record

Horizontal articulated 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-2026-000001859) never changes.

Identity and time

Publication numberOT-2026-000001859 · never reused
Internal UUID01a0a679-0da5-7d60-8887-e1458b8463e3 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:09:06.342124Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001859
StatusPUBLIC

Content hashes

Canonical text88702171342e5e8f6b901f636b59550d310274aa5b72095425daaf2d6ffbbda7
Markdownfdedb96f9c9d582b06f9f33c9f4abc7b03a3efc4d3dc8c22aaa651820fc60748
PDF
Publication page9c1f238583e45e7c720f6637f79d4cb9741fd6f9cd64de167b971ba3f21edb8c
Manifest28e67b57cff6dd8693e57de24f0a4125b90e0537b123ce87d7b6eb2bd8eb51c8

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
SignaturetZd7P0TuCAo9O8xqpwticeF9lYvFibU2za5Bx1iIcERGCN38oRezeY1SQWVGfbLDQH4jJleMwU6hr9HpkgaFDw==
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

2026-09-19T12:42:08.934168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859
observed 9c1f238583e45e7c720f6637f79d4cb9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:42:08.768468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859/manifest.json
observed 28e67b57cff6dd8693e57de24f0a4125...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:42:08.619333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859/publication.md
observed fdedb96f9c9d582b06f9f33c9f4abc7b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:42:08.422534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859/publication.txt
observed 88702171342e5e8f6b901f636b59550d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:23:12.934197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859
observed 9c1f238583e45e7c720f6637f79d4cb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:12.920301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859/manifest.json
observed 28e67b57cff6dd8693e57de24f0a4125...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:12.905998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859/publication.md
observed fdedb96f9c9d582b06f9f33c9f4abc7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:12.893103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001859/publication.txt
observed 88702171342e5e8f6b901f636b59550d...
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