OpenTechnical

OT-2026-000002555

Publication integrity record

Spiral conveyor system with direct cage engagement

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-2026-000002555) never changes.

Identity and time

Publication numberOT-2026-000002555 · never reused
Internal UUID01a0a67d-6014-7721-a469-3bc7b46a91e0 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:49.589035Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002555
StatusPUBLIC

Content hashes

Canonical text3ded224fd3d277de1a2df9245d3d7c0c509dd9f6f87917721559f9d7a7e7c84c
Markdown505ed93a27afc6052ded268b18ae1038ec9ef1bddc6f0a16de234485d13b2c59
PDF
Publication page1ac7fdc85d42dd84fc874918adbef7fdd2e1afe26b4b0923dea88fef2ce74e78
Manifest8c41ae5ef36a75bd9e14a64dd03712d159902994bd009865ef4e0a8a2e61d295

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
Signature571H7yqcQuDTs+SQSi4iVRRBw4Ka4yfTpQhcDXk3SPQwz1lR0FJGPTuuLlAxll67DZhv/IjTIwARm9LfjHArAQ==
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

2026-10-05T16:41:16.592545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555
observed 1ac7fdc85d42dd84fc874918adbef7fd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T16:41:16.494783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555/manifest.json
observed 8c41ae5ef36a75bd9e14a64dd03712d1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T16:41:16.387248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555/publication.md
observed 505ed93a27afc6052ded268b18ae1038...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T16:41:16.238686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555/publication.txt
observed 3ded224fd3d277de1a2df9245d3d7c0c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:41:05.658147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555
observed 1ac7fdc85d42dd84fc874918adbef7fd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:41:05.456440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555/manifest.json
observed 8c41ae5ef36a75bd9e14a64dd03712d1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:41:05.246428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555/publication.md
observed 505ed93a27afc6052ded268b18ae1038...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:41:04.914219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002555/publication.txt
observed 3ded224fd3d277de1a2df9245d3d7c0c...
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