OpenTechnical

OT-2026-000104200

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pulsed blow-off after set-down, on a tool 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-2026-000104200) never changes.

Identity and time

Publication numberOT-2026-000104200 · never reused
Internal UUID01a0aea5-3420-7f82-a59b-dd736203cb52 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104200
StatusPUBLIC

Content hashes

Canonical textbf9b49058d7f64cdf86da0d6de2e0649949e5e9ba41319b5e67f18a54eae4593
Markdown6e9656dbad6a07ab9dfc70e979ef34c315f892f3b5968c4f0adb19115f7bdaed
PDF
Publication page451f31bffcd5379e1187e00f2c12ffdcba356fd3b65bc53c7d33ac0544d9d699
Manifest13d67db4e67c4ae69f9a81f80b6d9c1ce8bb51cb1e70a40f27ba64284ec0d2ba

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
SignaturekOlx9RttV1g40mMVmZvrRZew2WgBcGsM9zN3nqo+uqJmwxzQkLj0lastu5Qg0eh5i7zdKUIbwIZn0dpuAIIsAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:17.910437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104200
observed 451f31bffcd5379e1187e00f2c12ffdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.893022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104200/manifest.json
observed 13d67db4e67c4ae69f9a81f80b6d9c1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.876193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104200/publication.md
observed 6e9656dbad6a07ab9dfc70e979ef34c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.857898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104200/publication.txt
observed bf9b49058d7f64cdf86da0d6de2e0649...
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.