OpenTechnical

OT-2026-000069649

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed, pressure sensor per zone, 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-2026-000069649) never changes.

Identity and time

Publication numberOT-2026-000069649 · never reused
Internal UUID01a0ae90-b52c-77ad-ae61-f613ecbf4bde · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069649
StatusPUBLIC

Content hashes

Canonical text14e1a609921b7e64427c8f3f4be9d7a222ba8e9b2ec51346885c846b8ae4f1e9
Markdownb13d8191c442ae57acfea4597948b66a118e2b2f29e51b2904c0308fdc81b29d
PDF
Publication page4a78e1dddab289814b3fdb5909ea6bb434a2aacb5c4a3fb870c0f81e9a4d5313
Manifest91c2b6bcefcb5d96b1f2a29514e48e15b98b3c649c6ce225810f28a949e8e97d

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
SignatureRTvrTd+oEPFbDPvJ4RwtUH/4YuTXVgczE4zezPtLo3IstFOIh0qlgUb4IYIvHP5bBwLzMGMJFqGKXJr8mA5UCw==
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

2026-09-17T10:28:18.920787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069649
observed 4a78e1dddab289814b3fdb5909ea6bb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:18.904200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069649/manifest.json
observed 91c2b6bcefcb5d96b1f2a29514e48e15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:18.887590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069649/publication.md
observed b13d8191c442ae57acfea4597948b66a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:18.869469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069649/publication.txt
observed 14e1a609921b7e64427c8f3f4be9d7a2...
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.