OpenTechnical

OT-2026-000003421

Publication integrity record

Gravity roller conveyor construction

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-2026-000003421) never changes.

Identity and time

Publication numberOT-2026-000003421 · never reused
Internal UUID01a0a6bf-0fd5-77bd-9500-925f72ba6e22 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:25:34.421437Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003421
StatusPUBLIC

Content hashes

Canonical textaf18b88c0f24e0039360edc9de6e2c021ff23c32fb23c2a383b2f64c8436d4f3
Markdownd074f6b223c59584dec0bbcfd4d101d2d1342309f0e1ae2ed36c8b22be60f29a
PDF
Publication pagead700b88f3c00f7b888d528e628703641dd47e1a53f6b8d6fc8602612eb8380d
Manifest9ce37b92b2fff6bc9d9baea58d650c447360aa314b8edff6fd49978af3922f4e

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
Signaturebzk1Q/3sjy9x2olQtPbGuRQifIrqUirRnR/JJwS3HAjJhe8/CqaEHKMwK/YybhfN64jN+wDXqWrro6e/VAleBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:27:02Z
batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof
root 0d980c01ea01b2d7f69845e24a85320c...

Independent retrieval

2026-10-03T04:23:27.886883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421
observed ad700b88f3c00f7b888d528e62870364...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-03T04:23:27.874660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421/manifest.json
observed 9ce37b92b2fff6bc9d9baea58d650c44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-03T04:23:27.862363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421/publication.md
observed d074f6b223c59584dec0bbcfd4d101d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-03T04:23:27.675285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421/publication.txt
observed af18b88c0f24e0039360edc9de6e2c02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T20:30:07.360414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421
observed ad700b88f3c00f7b888d528e62870364...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:07.207263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421/manifest.json
observed 9ce37b92b2fff6bc9d9baea58d650c44...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:07.193300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003421/publication.txt
observed af18b88c0f24e0039360edc9de6e2c02...
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