OpenTechnical

OT-2026-000000313

Publication integrity record

Systems and methods to configure a robotic welding system

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-2026-000000313) never changes.

Identity and time

Publication numberOT-2026-000000313 · never reused
Internal UUID01a0a673-387a-7079-909f-a98c7b3b4572 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:44.090952Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000313
StatusPUBLIC

Content hashes

Canonical text054864b578225e18a795031af90c463ebe0ae6aa9fa19d8638d3d3fa5040e79d
Markdowncfaefd55b2983a30005a8730abb3cbdccc833d3f0b151f30d03495d61718313b
PDF
Publication page8e50d5795cae5ecfa16a85a12e690d21f3052440de51f679d54d14ee41455999
Manifest66eb18373c693d49cdf27a4331bf516d00d3d2abbf50cd1c85f49151e82d1034

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
SignatureR0D6i9JASCbpsvMIAuM7eRPYu9G0M6iVu1Z5F7J/Oi4szXPDol8TUlfX7RujCrxbdgV/Bh+Z+wrlNI6QLFZ+BA==
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

2026-09-15T20:42:54.240976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000313
observed 8e50d5795cae5ecfa16a85a12e690d21...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:42:53.754991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000313/manifest.json
observed 66eb18373c693d49cdf27a4331bf516d...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:42:53.509088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000313/publication.txt
observed 054864b578225e18a795031af90c463e...
fetched by grabo-systems 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