OpenTechnical

OT-2026-000076089

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000076089) never changes.

Identity and time

Publication numberOT-2026-000076089 · never reused
Internal UUID01a0ae94-6a6e-73f0-aad0-a86f31364e08 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076089
StatusPUBLIC

Content hashes

Canonical textb8c2df0d7f3aaa5730ad7a14730d1093666db0b1b9d01e0bb1658ffa20cda4ca
Markdown83924b7e5c825e2ed51b6b16e531fb38b563b816e11d84f3066c108ee9178efb
PDF
Publication paged930e285e457e879881bb4bd4a2a814b1af3f318c812e0a9ebd27a0fa38dd781
Manifest1add541a02f9b24a7314e833c4ca6ae3949673870b2f081945803402a1ba29a8

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
SignatureXuoBkQMBnEcqiAMmECn6ff4yr+GXHFGNKZPXGWjRYBmtFpuslw4dkHQIZelHU9GfR8pEKyNtFp/NpdNawBr1BA==
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

2026-09-17T10:10:55.552988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076089
observed d930e285e457e879881bb4bd4a2a814b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:55.533986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076089/manifest.json
observed 1add541a02f9b24a7314e833c4ca6ae3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:55.516339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076089/publication.md
observed 83924b7e5c825e2ed51b6b16e531fb38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:55.487605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076089/publication.txt
observed b8c2df0d7f3aaa5730ad7a14730d1093...
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.