OpenTechnical

OT-2026-000081971

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, sustained 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-2026-000081971) never changes.

Identity and time

Publication numberOT-2026-000081971 · never reused
Internal UUID01a0ae97-0f77-71f7-a862-8f7915c59509 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081971
StatusPUBLIC

Content hashes

Canonical text4af0ac06b6c16144d1fd43fac82b271a62ec14062aaefdf60284dae245f2b2b3
Markdown144445eb412353beeea56cd5a0100e97705e22955b2ec350d2759666cca63800
PDF
Publication page3b227b54214df389c708c3906b4de86b380c05d1c135d9b5bb49f4daaca341d7
Manifestbc4b862464f00995302b16ebfae8650292700a9b661c5021517bff712fae693a

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
Signature0NrNeEiTwe/puPWC/EbnKBvZgIygwn6SCt9N57oL1bO2I9tcFtm2re61NPvBwHPhEV8Q5/JTydwj/SIkrWZYAg==
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

2026-09-17T10:01:06.583702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081971
observed 3b227b54214df389c708c3906b4de86b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:06.566825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081971/manifest.json
observed bc4b862464f00995302b16ebfae86502...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:06.549793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081971/publication.md
observed 144445eb412353beeea56cd5a0100e97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:06.533288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081971/publication.txt
observed 4af0ac06b6c16144d1fd43fac82b271a...
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.