OpenTechnical

OT-2026-000012840

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, 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-2026-000012840) never changes.

Identity and time

Publication numberOT-2026-000012840 · never reused
Internal UUID01a0ae6d-5563-7d07-afde-2908bd89596b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012840
StatusPUBLIC

Content hashes

Canonical text4a7f7437be0b35618bd61e33d6f15042f04d339ab56414d338d26a86dedebee7
Markdownab7b40fae6fbfeda80ec28dfd51961171da0b4819537f6c01981a77383b89153
PDF
Publication pagee0841150ad1b94d4b136bcdd0dc187fcdddc071658a54d51046c569dd2d71caa
Manifestbd0e6834d2b7e7417dff8f464d67f0a34de31915dab15709ed319cd08d0639e9

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
Signature1g2S58OAF5TH3JtK+yP5B4V0wkrBOt+hHAGGWchJeQT82Bw2RnWzQlCfdYg/ZhV4xW55Uq73Fx9i4EpHtDYmBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:10:36.415406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012840
observed e0841150ad1b94d4b136bcdd0dc187fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:36.395989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012840/manifest.json
observed bd0e6834d2b7e7417dff8f464d67f0a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:36.376861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012840/publication.md
observed ab7b40fae6fbfeda80ec28dfd5196117...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:36.352968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012840/publication.txt
observed 4a7f7437be0b35618bd61e33d6f15042...
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.