OpenTechnical

OT-2026-000071568

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented 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-2026-000071568) never changes.

Identity and time

Publication numberOT-2026-000071568 · never reused
Internal UUID01a0ae91-e0ee-7f37-a130-918f3387a690 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071568
StatusPUBLIC

Content hashes

Canonical texta724c705d061bbff02035b5b73f6ba2f14dc65028034a66209a4d4f216e688ec
Markdown252278e4c4585dff0c5980e81e89d8fc8f43d0fd30ce9547b377707d8711597f
PDF
Publication pagebb928f8290ad8ac4f7d1e00830dbaa8ead45340ba345fdf94c89c02fcce6a8d9
Manifestfd13b8ea16767074369cf9e9ef477436ab2805b6adad4a2af04e9d53a1b5c561

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
SignatureWfUMpnquwyu83nrITrfk9MY4vY0Geiog6EV8GsWSQNwjWwzNYyJ9UXTN4gfUppoL3M09MHEWPDGFQ2IBlbTYAg==
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

2026-09-17T10:24:57.942876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071568
observed bb928f8290ad8ac4f7d1e00830dbaa8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:57.925561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071568/manifest.json
observed fd13b8ea16767074369cf9e9ef477436...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:57.906526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071568/publication.md
observed 252278e4c4585dff0c5980e81e89d8fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:57.888529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071568/publication.txt
observed a724c705d061bbff02035b5b73f6ba2f...
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.