OpenTechnical

OT-2026-000002668

Publication integrity record

Semiautomatic spiral-tightening device for a vibrating conveyor

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-2026-000002668) never changes.

Identity and time

Publication numberOT-2026-000002668 · never reused
Internal UUID01a0a67e-0bf6-7c37-b553-940170da2f71 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:14:33.590895Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002668
StatusPUBLIC

Content hashes

Canonical text4132b38c51a1a81b3a3ecf8722e8e0eff90b0f726457b558b8d6fce413df8b3d
Markdown3ba0c825f2c7675a7d6c561debc3ab8f5afb3ea67f0ed3ff4c1fb85720d3dd6e
PDF
Publication pagedb976f1498dfe98065b21bea887a5fd8b31dbb64872df5f3e0cbec52d7ee89d9
Manifest567f87b2d679e4d71bdf727eeabd90ec82bfd405d56520328619e6d9436d6b9a

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
SignatureUizk3abges02+Lelr0yy+v32B3zeYCy9bd0Nxuye6Z5lIl5LfDabDLFVDzhlXUAz9+RGItPM6ZuNjn91VVPACw==
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

2026-09-29T08:41:08.145682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668
observed db976f1498dfe98065b21bea887a5fd8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T08:41:08.069837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668/manifest.json
observed 567f87b2d679e4d71bdf727eeabd90ec...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T08:41:07.932232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668/publication.md
observed 3ba0c825f2c7675a7d6c561debc3ab8f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T08:41:07.580829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668/publication.txt
observed 4132b38c51a1a81b3a3ecf8722e8e0ef...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:30:18.923193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668
observed db976f1498dfe98065b21bea887a5fd8...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:18.887759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668/manifest.json
observed 567f87b2d679e4d71bdf727eeabd90ec...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:18.868088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002668/publication.txt
observed 4132b38c51a1a81b3a3ecf8722e8e0ef...
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