OpenTechnical

OT-2026-000005961

Publication integrity record

Vacuum cup gripper, four zone face, common isolation valve, ejector fed, contact triggered, silicone cups

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-2026-000005961) never changes.

Identity and time

Publication numberOT-2026-000005961 · never reused
Internal UUID01a0a94a-904e-758b-8a75-269f6813454e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:17:11.249427Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005961
StatusPUBLIC

Content hashes

Canonical textea5c59f79875ea3daa8a12463ef17a62234dc0754ba595e5542d424b86e51c68
Markdowna9c46adc0eca5d7cb12f3666cbbc6ea2a28789a9594f1008de1f71c60130292c
PDF
Publication page87a2e06d786ed9f342c93eae4b087aa0f732cc5c8613fa55abd2bcd76928d300
Manifest310132587d4a00698854eb26d2bffbc89607e3dc66bf0aa0c92a2029cc7361ec

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
SignatureMTInirUUyrMWtzhHT927Wbw5/gMkU9n1rVo4kTcxkR2vf5PSY4mZTvtg/nOGhaUxHEFRPAyLAb0MC83ETRwQDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:12.401136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005961
observed 87a2e06d786ed9f342c93eae4b087aa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:12.382156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005961/manifest.json
observed 310132587d4a00698854eb26d2bffbc8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:12.242845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005961/publication.md
observed a9c46adc0eca5d7cb12f3666cbbc6ea2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:12.226979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005961/publication.txt
observed ea5c59f79875ea3daa8a12463ef17a62...
fetched by instance-3.rotem.ai from 34.69.0.72, 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

Custody packagePending Custody packages are produced weekly.