OpenTechnical

OT-2026-000042052

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, pulsed blow-off after 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-2026-000042052) never changes.

Identity and time

Publication numberOT-2026-000042052 · never reused
Internal UUID01a0ae7a-5d70-79c8-b268-ebf0233a1fd5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042052
StatusPUBLIC

Content hashes

Canonical textf5a6e4474700dd82d49d9b23f13004fccada84ce2179588a286a45da9bfab2d2
Markdown6b17c42a35c10fb15128d990cad88fa69c98a40082e9b2e9890c5a11dd42fdc2
PDF
Publication pagee1273b448922c3bedacf9e577ed104510622d20e62696a85739bda9218e66d85
Manifest43349109cfbc009763c31be0d3e1e22cd7396d1e71cc8e0f9307dc827f1d71ff

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
SignatureQ3s3cQwdy4hIO6/NYPOovzhKWnVyFg7YjzubNnmJBGkIfzmqCDCG3DsU1yfS8/MKzOxIxxauFouHE64yfS8MDg==
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

2026-09-17T11:15:34.091441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042052
observed e1273b448922c3bedacf9e577ed10451...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:34.071327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042052/manifest.json
observed 43349109cfbc009763c31be0d3e1e22c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:34.052716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042052/publication.md
observed 6b17c42a35c10fb15128d990cad88fa6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:34.033665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042052/publication.txt
observed f5a6e4474700dd82d49d9b23f13004fc...
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.