OpenTechnical

OT-2026-000077303

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000077303) never changes.

Identity and time

Publication numberOT-2026-000077303 · never reused
Internal UUID01a0ae94-f508-7aa2-97e9-c1cfda18f735 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077303
StatusPUBLIC

Content hashes

Canonical text31d7e6f8d4571a99ea6261dc3bda4f81b88659daf5012e7e5d6d1c6deda58645
Markdownbea0a2f699b7c29bc47d330ca47104740493ed7ce0cc21ecc068c8363888967f
PDF
Publication page6ffefa9d2ba666ddd688b54cb974fcc2de031ae0f61f8a42dfb8731814708055
Manifest278131f9241afa54ca5a7df88fb1b264189886818491d7d4a5ca92cd9ad8d72a

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
SignatureCAbSHGeRdW4XZEQ/GVLeGNavL/eZ3dTtbN4EgscNrsC8MkOQ7Innfa+zqxGU3sXwDCuh3CxAuCIC5ua8YeZNBg==
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

2026-09-17T10:08:56.320785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077303
observed 6ffefa9d2ba666ddd688b54cb974fcc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:56.303778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077303/manifest.json
observed 278131f9241afa54ca5a7df88fb1b264...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:56.286682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077303/publication.md
observed bea0a2f699b7c29bc47d330ca4710474...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:56.268096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077303/publication.txt
observed 31d7e6f8d4571a99ea6261dc3bda4f81...
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.