OpenTechnical

OT-2026-000012249

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum 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-2026-000012249) never changes.

Identity and time

Publication numberOT-2026-000012249 · never reused
Internal UUID01a0ae6d-39f5-79b3-8d06-2c1f565808b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012249
StatusPUBLIC

Content hashes

Canonical textb99964290bdff69bea2ab76429299ef8913c5197862d6bc51f2a382b73e22bba
Markdown95a27b38ec32cbc4a74b23d656c9e5310940210f6f3c6e965574fa0359900bbf
PDF
Publication pagefdae129c29b3d5b3eda9bc74d161b2b72e7575bb4e5aae72ecc8f5416bc7f007
Manifest5cc0aea8f7d3e10e131389022cae7f3e821c054437eb15dc2a47e652005010df

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
SignatureTbm3W4EPIjIcui90Y1yFwTanESYLiRgPV5pUKAemZ4eBibfYBtzQ7nG2o/ReujHUzXdBLtMZODaAQJ9Lp+eQAA==
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

2026-09-17T12:11:10.720259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012249
observed fdae129c29b3d5b3eda9bc74d161b2b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:10.700029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012249/manifest.json
observed 5cc0aea8f7d3e10e131389022cae7f3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:10.681470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012249/publication.md
observed 95a27b38ec32cbc4a74b23d656c9e531...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:10.663583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012249/publication.txt
observed b99964290bdff69bea2ab76429299ef8...
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.