OpenTechnical

OT-2026-000002438

Publication integrity record

Manufacturing system, control method, and computer-readable medium storing control program

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-2026-000002438) never changes.

Identity and time

Publication numberOT-2026-000002438 · never reused
Internal UUID01a0a67c-aa7b-77ed-b36a-09fb10df555f · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:03.099569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002438
StatusPUBLIC

Content hashes

Canonical textff419fbacc2b08bf8c7d5664ac2e2f1325ad90ecd399d1878975d4c433f07796
Markdownd06f08cde12859627745a0b1f5dcdfac96e364ab5cf786e437e9f0621a92d2c2
PDF
Publication page24c0270d007a4a3963d3a75f328a7c9b8358d9b246aa1cc86ab5d2b6dfddc852
Manifest6e1352140e56ece4fabacd877d7859225026e80c3f4b8b2681b8c0077ee8a6e4

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
SignatureE8V8rlESPFvf6e9M+XorPSnNM8uC6uVrlYBc8Q+qld0qWXPqWWVrcd/clNjd3UG0Nr2tmqakT0tjBpLlhYLxDg==
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

2026-09-16T20:42:50.622006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438
observed 24c0270d007a4a3963d3a75f328a7c9b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:50.330665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438/manifest.json
observed 6e1352140e56ece4fabacd877d785922...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:49.989657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438/publication.md
observed d06f08cde12859627745a0b1f5dcdfac...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:49.770647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438/publication.txt
observed ff419fbacc2b08bf8c7d5664ac2e2f13...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:08.361071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438
observed 24c0270d007a4a3963d3a75f328a7c9b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:08.241769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438/manifest.json
observed 6e1352140e56ece4fabacd877d785922...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:08.103538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438/publication.md
observed d06f08cde12859627745a0b1f5dcdfac...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:07.934572ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002438/publication.txt
observed ff419fbacc2b08bf8c7d5664ac2e2f13...
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