OpenTechnical

OT-2026-000003309

Publication integrity record

Hydraulic food cutter with automatic blade changer

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-2026-000003309) never changes.

Identity and time

Publication numberOT-2026-000003309 · never reused
Internal UUID01a0a6ae-34cc-702c-a32d-156f65d36105 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:07:09.772471Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003309
StatusPUBLIC

Content hashes

Canonical text286f176a4df5eacd19ca039f01a4f20993841467455df9939a4aff7d21fdb2ca
Markdown54e3c40e9f65e37e6d34d6d0c9b42254bc9dedeeebbfe423b83adf99d08dd3e0
PDF
Publication page0aa59a6f0f0d756f7f4928fc30fd29fee71c27287f5837bb7e5b6b4a3a91c258
Manifest4f27525939ea934ec728ef44a57125db186f19ac3ebddf4439947ee1071c6dc7

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
Signatureadmmox125GJ/oULht/1wJho0LlTqSZsTvKXNZMXIteWeW3h+0Yj1dcPdxLDcjxXRG2Z3zHQNQWkZHksZVKioCg==
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

2026-09-15T20:10:04.978135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003309
observed 0aa59a6f0f0d756f7f4928fc30fd29fe...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:04.809049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003309/manifest.json
observed 4f27525939ea934ec728ef44a57125db...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:04.794944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003309/publication.txt
observed 286f176a4df5eacd19ca039f01a4f209...
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