OpenTechnical

OT-2026-000000064

Publication integrity record

Vacuum cup for article lifting machine

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-2026-000000064) never changes.

Identity and time

Publication numberOT-2026-000000064 · never reused
Internal UUID01a0a672-9175-7a94-a5ad-726ee5e18273 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:01.336687Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000064
StatusPUBLIC

Content hashes

Canonical textbdfd69b01b543e2646ed8c9a4a920a71d2da1381cd239ff89a72e456d1b49192
Markdowna1ac0cd64082a1a05a6a8fb43e8bca4d5ffe41868feced2dca0c45f18a65480f
PDF
Publication page3acc6f643b16924a8fccf09c090885082ffaae281b63a2f2845e000d94a3b2b1
Manifestc6086c5a0f0c1f8f0381a3eb956026c275dfaae2335bf81c9860f2491ecd718d

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
Signaturegc558oFZcts1Kgl8LIVRrnkNaOamonfLzA/JY1URtR9XCIWxqA/aWKCHFVorQgNnLWtdoPJRc+3qjCf8lcV/AA==
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

2026-09-15T21:00:15.600114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000064
observed 3acc6f643b16924a8fccf09c09088508...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T21:00:15.571488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000064/manifest.json
observed c6086c5a0f0c1f8f0381a3eb956026c2...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T21:00:15.432136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000064/publication.txt
observed bdfd69b01b543e2646ed8c9a4a920a71...
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