OpenTechnical

OT-2026-000074533

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074533) never changes.

Identity and time

Publication numberOT-2026-000074533 · never reused
Internal UUID01a0ae93-717b-79b3-a988-bde7d698603d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074533
StatusPUBLIC

Content hashes

Canonical text3186ca181d7d667ac96bc73c53c4c9f79c9b024ba8db0a2218fcf04b83de4f5e
Markdownbcef0f77e0adbfedc79adbb1cc1cb0d0dba8591eda5e7da15881b30bf294bd5f
PDF
Publication page1ac68065fce03af00ea1aca65053c611ee2216852f209628c4cdc16828b36146
Manifest73b16868245a8b98581e2f297e14c60fd335c679751196b6849b1d8b46870769

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
SignaturepTWBIHl9hoPVezmsizbAY76zZ+ebFmPnsL9AbGf3h6wZiRcjUSuJGNR93ojCnGSXJ4NQC0nISIc0YjazX2k9Aw==
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

2026-09-17T10:19:30.838014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074533
observed 1ac68065fce03af00ea1aca65053c611...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:30.819642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074533/manifest.json
observed 73b16868245a8b98581e2f297e14c60f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:30.802010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074533/publication.md
observed bcef0f77e0adbfedc79adbb1cc1cb0d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:30.782828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074533/publication.txt
observed 3186ca181d7d667ac96bc73c53c4c9f7...
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.