OpenTechnical

OT-2026-000067423

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000067423) never changes.

Identity and time

Publication numberOT-2026-000067423 · never reused
Internal UUID01a0ae8f-6bd9-776c-8cb7-0d872b08e2be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067423
StatusPUBLIC

Content hashes

Canonical text1cc930b6ebd6856aae79eefc017fabc11442e51aa6ba6d28cfc377df46c28a52
Markdown617c558ad331e7fcff00b7c8312c50b96467a93f8b0030a7431348b6ba817fe8
PDF
Publication page336677ef47fd2f5d7532235d3b6f1c4f50c65f6a0c02853d7b77e6eac64aacd3
Manifestd388800ab8dc065ebd92c318d1f52cfd6277f2c1b79024d7852cd22c6c1eacd5

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
SignatureVS6wj0FhuSYCBNGXMEaioU8j6LRSTxt7hybWMzhZetRkhMJ7f54Q87IeDRuq9v0cnUgJUydZDIejF09GUWBNCw==
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

2026-09-17T10:31:37.322985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067423
observed 336677ef47fd2f5d7532235d3b6f1c4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:37.305522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067423/manifest.json
observed d388800ab8dc065ebd92c318d1f52cfd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:37.287982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067423/publication.md
observed 617c558ad331e7fcff00b7c8312c50b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:37.272147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067423/publication.txt
observed 1cc930b6ebd6856aae79eefc017fabc1...
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.