OpenTechnical

OT-2026-000006615

Publication integrity record

Vacuum cup gripper, six outlet manifold, pump fed, contact triggered, polyurethane cups, flat 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-2026-000006615) never changes.

Identity and time

Publication numberOT-2026-000006615 · never reused
Internal UUID01a0a961-6f52-7e54-8c9a-649803717e57 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:42:10.134267Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006615
StatusPUBLIC

Content hashes

Canonical textca72d7f9b6b8d89c95a18e7dbfea283cfb64f4b2cc8b5f19f9cdd6b339cb9c81
Markdownf58777c9096cbe6dafc890d1c9a31dd3bb225d6e4d956164ffa1b5b1d0aa1d11
PDF
Publication pageeeeab66a14b359f4c3b1444168108b7ef4a0cf249aff7f385a2fcf587d6b2e44
Manifest4eddd2925ec87c5eafc5030a7c3010842d7897cec7990a35f4b2a190babd3776

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
Signaturejnzxbs4dYlAFia4RgV0an9qal8RdKuFP3AzJg1rAcvDHXy8tvlh+oMnWn4qLhGLSvl6yGXh8YGJ3Et7Fm7OTCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:24.982140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006615
observed eeeab66a14b359f4c3b1444168108b7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.969561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006615/manifest.json
observed 4eddd2925ec87c5eafc5030a7c301084...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.956535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006615/publication.md
observed f58777c9096cbe6dafc890d1c9a31dd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.941942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006615/publication.txt
observed ca72d7f9b6b8d89c95a18e7dbfea283c...
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.