OpenTechnical

OT-2026-000000870

Publication integrity record

Belt tension measurement 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-2026-000000870) never changes.

Identity and time

Publication numberOT-2026-000000870 · never reused
Internal UUID01a0a673-f0b3-7c39-a213-b602c8ae8ca6 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:31.251593Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000870
StatusPUBLIC

Content hashes

Canonical text360a84586b0c24dd2cdf2152000a3103b5c213ebc671a696d51e2a4d3f79bb5c
Markdownf159442336c94a98f1c7f35c650e90d188d0da35114544116e2cc21544a7fb82
PDF
Publication pagee03958172956fd115c6e34818b70b946680060bebefec07d720f66a4437722fc
Manifest0d7ff1817c6dd151d6df884124c72cbe71c89aed65d0fd7d7e7e64ffec7bbdb9

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
SignaturecXk+SFKRmG2qcP9+g93buGL/2ClUtBHqbNeSaG59pBS4Xf6Q7LX5h5ZrA2d8c5zvplfrsuiaAYtFvyuFzlHjAw==
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

2026-10-12T08:41:38.491230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870
observed e03958172956fd115c6e34818b70b946...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T08:41:38.408693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870/manifest.json
observed 0d7ff1817c6dd151d6df884124c72cbe...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T08:41:38.325971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870/publication.md
observed f159442336c94a98f1c7f35c650e90d1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T08:41:38.157077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870/publication.txt
observed 360a84586b0c24dd2cdf2152000a3103...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T04:41:02.732534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870
observed e03958172956fd115c6e34818b70b946...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T04:41:02.657493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870/manifest.json
observed 0d7ff1817c6dd151d6df884124c72cbe...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T04:41:02.573244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870/publication.md
observed f159442336c94a98f1c7f35c650e90d1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T04:41:02.399531ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000870/publication.txt
observed 360a84586b0c24dd2cdf2152000a3103...
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