OpenTechnical

OT-2026-000075677

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, 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-2026-000075677) never changes.

Identity and time

Publication numberOT-2026-000075677 · never reused
Internal UUID01a0ae94-29fd-7312-a06c-ebee455d018f · 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-2026-000075677
StatusPUBLIC

Content hashes

Canonical textcc6fb4dd917bd9b172af2f5d5cb4026ba910c68ffcbf10e6c0bcc7216edb6854
Markdownb2f147aae79c731da84bdd0593939e49f2de031ee55740d46b1723762f93c2dd
PDF
Publication page4c903858d339c8b1ba86fb6beed6cbfc3d632bfaf174b8f2adefe452a8ca92d4
Manifest49380f633f626676b6836276181391558d99700a8c94bb5cb9fd77d02d0d00f4

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
SignatureHJ1eFgAaJX+AtoWmzS6rTwwvwfzarJWqg/W41/kg84dVfahqV1QGlEcrb03npxSHZ5OvnY8ZZUMH0kDo7mhJCg==
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

2026-09-17T10:13:49.543248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075677
observed 4c903858d339c8b1ba86fb6beed6cbfc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:49.523896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075677/manifest.json
observed 49380f633f626676b683627618139155...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:49.503769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075677/publication.md
observed b2f147aae79c731da84bdd0593939e49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:49.484728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075677/publication.txt
observed cc6fb4dd917bd9b172af2f5d5cb4026b...
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.