OpenTechnical

OT-2026-000003287

Publication integrity record

Workpiece-holding 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-2026-000003287) never changes.

Identity and time

Publication numberOT-2026-000003287 · never reused
Internal UUID01a0a6aa-6a05-72fd-b87d-ec4aa435e68a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:03:01.253995Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003287
StatusPUBLIC

Content hashes

Canonical text01e256702803c74e6d74281083455e63c168ee618632ddb7663573dd90b6cf5e
Markdown534a16b3b1e293271c2b84aeda29dd92b77b0bc82872e542bd5a3a7fab9ec4f3
PDF
Publication page4b2816799cfd273a13387b0dfaf3bcc548cbc7500835eb2f6da1862dd5738e9b
Manifest40b2e9acd91b251535a2cd12f3f42e4caa0b52f89c51c71ba68448fc8a4b6059

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
SignatureI96QPDLvyI7IRI4SC/BKm5RiAjRIkExT9QZCnWAFApVYk1b+rX35jT8ukBOK+U6oQ7Wi/FmnGXwprP2eRJ6LBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:07:03Z
batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof
root d42f3e627490c26ffd144bf37543fecf...

Independent retrieval

2026-09-15T20:43:25.272066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003287
observed 4b2816799cfd273a13387b0dfaf3bcc5...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:43:24.755387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003287/manifest.json
observed 40b2e9acd91b251535a2cd12f3f42e4c...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:43:24.602790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003287/publication.txt
observed 01e256702803c74e6d74281083455e63...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:08.711104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003287
observed 4b2816799cfd273a13387b0dfaf3bcc5...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:08.460742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003287/manifest.json
observed 40b2e9acd91b251535a2cd12f3f42e4c...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:08.320079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003287/publication.txt
observed 01e256702803c74e6d74281083455e63...
fetched by instance-3.rotem.ai 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