OpenTechnical

OT-2026-000003976

Publication integrity record

Vacuum cup gripper, three stage ejector, vented before set down, rubber cups, oval form

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-2026-000003976) never changes.

Identity and time

Publication numberOT-2026-000003976 · never reused
Internal UUID01a0a90b-a419-7d64-875f-ad3fab17e070 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:08:27.548154Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003976
StatusPUBLIC

Content hashes

Canonical textc19f5b1c70f2a6b6cf76a4d565871b0d09cd145e453b8d59b6e33bd37ae6f827
Markdown0838bba4f293cfa8513acbddcba942b03e8ac8dda135399362c155a6abb5edce
PDF
Publication page958fefe7affa1776761d96522777200634ff291162076831ac96ed9f86127a5e
Manifest0b6354802cf7a21cfc44eacd1c4e93fd40ae16ec1872bc5526b178ba26ff0f13

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
SignaturefPZ15MO90V+yWVrpnd5rfifJKd/ibFVJY57oujTa8HljTynoKPA2y8RxnH/XQyYiM9zIAi5DcYfkzRZG94d1DQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:10:08.721695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003976
observed 958fefe7affa1776761d965227772006...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:08.705516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003976/manifest.json
observed 0b6354802cf7a21cfc44eacd1c4e93fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:08.691196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003976/publication.md
observed 0838bba4f293cfa8513acbddcba942b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:08.676725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003976/publication.txt
observed c19f5b1c70f2a6b6cf76a4d565871b0d...
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.