OpenTechnical

OT-2026-000075621

Publication integrity record

Foam pad vacuum gripper, two zone face, single stage ejector, pressure sensor per zone, pulsed blow-off before 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-2026-000075621) never changes.

Identity and time

Publication numberOT-2026-000075621 · never reused
Internal UUID01a0ae94-29fd-7faa-a590-388406d01d9a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075621
StatusPUBLIC

Content hashes

Canonical texta96eefe2d987fe4a363f9fdb4ef27695ee37cb102326a28bb69f7de72175bfbf
Markdown6a28f38c82945696b5b6692a29e9c61b6e117bdfdc964b7b875578c7b6c96d08
PDF
Publication page13d0e2d0bfaac6e1545d8384dd4c5d09b6cb4e7ff0888c18e2e340940b33e903
Manifestdfc759378dc59f9bdfd1d4f7448af4f105c663a14810c1a35bdef1e68f57eb5f

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
SignaturelqiJU4RZg5WYEjlu/XvQRnTlh0EyDO01b5F9TM/fsSpPnFnB0DfRRTMygCKqiOT3onKaIIISYNUcqJp4r971Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:13:19.800566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075621
observed 13d0e2d0bfaac6e1545d8384dd4c5d09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.782511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075621/manifest.json
observed dfc759378dc59f9bdfd1d4f7448af4f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.754850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075621/publication.md
observed 6a28f38c82945696b5b6692a29e9c61b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.733511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075621/publication.txt
observed a96eefe2d987fe4a363f9fdb4ef27695...
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.