OpenTechnical

OT-2026-000075612

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000075612) never changes.

Identity and time

Publication numberOT-2026-000075612 · never reused
Internal UUID01a0ae94-29fd-7652-9cb0-01d60457f953 · 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-2026-000075612
StatusPUBLIC

Content hashes

Canonical text376ab9597023b75588111058e63bea567a1b465dc006503d38ca626009417d92
Markdown8e77a6a49544d297fc5acda4786d9283fae19ebbc726f3247e103d85f14798ba
PDF
Publication pagea6932e549df8662e6bff14fb67df727b1a2d80af377bbe895c9744e0af52aaf2
Manifestd5a7def2b751ed8cbf7d0a62c93ef8ac0a6aca1acdc4af8d2bcfe6e5fa57743b

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
SignatureQoGZKd/yajKfpsrcKeS+EyCj7atPFh6sgMpGH9XzHsCo2qvZ0jeQyfKMXQfdndl+akfg5rSDzM33l+jXixVwBw==
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

2026-09-17T10:13:18.789878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075612
observed a6932e549df8662e6bff14fb67df727b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:18.769781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075612/manifest.json
observed d5a7def2b751ed8cbf7d0a62c93ef8ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:18.749498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075612/publication.md
observed 8e77a6a49544d297fc5acda4786d9283...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:18.731676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075612/publication.txt
observed 376ab9597023b75588111058e63bea56...
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.