OpenTechnical

OT-2026-000029772

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, sustained blow-off 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-2026-000029772) never changes.

Identity and time

Publication numberOT-2026-000029772 · never reused
Internal UUID01a0ae73-5e24-71a6-adf4-255e5c12a1c8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029772
StatusPUBLIC

Content hashes

Canonical text606722f480e3348629e858772939b815ae4d34a3531587cd12793d1c2b8c583d
Markdown392b309dfba39c708ccbe399a48daa71bdfb983ea17ae4c6f2fbf8dfbe1b6e83
PDF
Publication pagec54c3274ac0f172ac62fac9a0a063846d745e6f3277899ec79cf653973abcb54
Manifest78ffa9d80ddb0b568c9a9554ce668aa96f9d8e9ddffc33776116b08f75f794b7

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
SignatureERKbdZ748yMUv87ud7b2LNOQ2PDYLAklWvL05KqOTwlJ2muox+mus38n4iaTphKe4Mn9XrPCfLXdHuGDwDqXAA==
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

2026-09-17T11:39:32.198542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029772
observed c54c3274ac0f172ac62fac9a0a063846...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:32.175696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029772/manifest.json
observed 78ffa9d80ddb0b568c9a9554ce668aa9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:32.154446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029772/publication.md
observed 392b309dfba39c708ccbe399a48daa71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:32.135868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029772/publication.txt
observed 606722f480e3348629e858772939b815...
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.