OpenTechnical

OT-2026-000007021

Publication integrity record

Vacuum cup gripper, three zone face, two stage ejector, 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-2026-000007021) never changes.

Identity and time

Publication numberOT-2026-000007021 · never reused
Internal UUID01a0a96f-d34a-7039-b3e9-07fc6e5f4291 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:57:53.230316Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007021
StatusPUBLIC

Content hashes

Canonical text93384d38106c5d65e843e89136b0eabee0a31879733b13a773652a204d6757a5
Markdownc96cbb08fc59a293c61833f17f695418efb125f4f270416be1eaaeafe29febe9
PDF
Publication page29e01ba9a957c491747753d931499ab78ae59640bc45ddcf2844bda8c1e079bd
Manifestdf96b4f656af05563b25314038f88f09d53547cac62f0e6ec20e2cd851ab97bb

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
Signaturen8CLc2aJMlWxUGoOis1Zv6V6bnTSLiGjBYIX3B++Y8Q+YLdYFXk1ThBBULX+WtuP3E0RfiTYtUoL5OaW1EkEAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:10.892596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007021
observed 29e01ba9a957c491747753d931499ab7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:10.877900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007021/manifest.json
observed df96b4f656af05563b25314038f88f09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:10.745608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007021/publication.md
observed c96cbb08fc59a293c61833f17f695418...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:10.732922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007021/publication.txt
observed 93384d38106c5d65e843e89136b0eabe...
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.