OpenTechnical

OT-2026-000003918

Publication integrity record

Bellows cup vacuum gripper, two zone face, per zone isolation, ejector fed, pressure verified

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-2026-000003918) never changes.

Identity and time

Publication numberOT-2026-000003918 · never reused
Internal UUID01a0a90b-74b9-76b4-a8c5-ac4b1be3deaa · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:08:15.420367Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003918
StatusPUBLIC

Content hashes

Canonical text1e549353ffb11a2b568e800c96996dd7f8eb3d0dd7566e6376995fe22a40a47b
Markdownae802a9064823a567af18644a9c145b5d7c7da37200c1f5a5c43077bbb8d5a32
PDF
Publication page63e4cf5573cd6adcc622b06832063e4070dba17385279a82f3669a85796bd49c
Manifestab6bd454e747aafee4d83760c37e2cf4471b54047d70be8e0a69e2fa880cf193

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
Signature1jFNhTBroJJhu8JTldy147r+YQyhi0Ezs74Mlm7NAZ4/wkSBiWQ2+hUkFPTref+iw4UNA/ahEkSbPJMctaPhDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:10:12.390336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003918
observed 63e4cf5573cd6adcc622b06832063e40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:12.377231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003918/manifest.json
observed ab6bd454e747aafee4d83760c37e2cf4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:12.362346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003918/publication.md
observed ae802a9064823a567af18644a9c145b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:12.344530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003918/publication.txt
observed 1e549353ffb11a2b568e800c96996dd7...
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.