OpenTechnical

OT-2026-000071462

Publication integrity record

Single bellows cup vacuum gripper, three 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-2026-000071462) never changes.

Identity and time

Publication numberOT-2026-000071462 · never reused
Internal UUID01a0ae91-e0ed-7009-a27c-af28b3022033 · 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-2026-000071462
StatusPUBLIC

Content hashes

Canonical texta4dfe4e2affc7d33c0ce036e5160222f8a32da0f698b23c5fc306f09c7488ec7
Markdownb90cf1650be78d3ee61e9a6043cd5669a4b7541e104eee3ad8e7b96243e74d17
PDF
Publication page193035cce7e1f376a6fabb491bb4f5fe10443fec9725bfdefb291caae94bec16
Manifest197629253e8683684a55f6659db2c02cbd4d08eeb88bf4fd68e58daacd126d2a

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
SignatureCqoxr83AUwVgkv4cTH14tjeni5y9nHsbCPH0yLVZ4D71UNmR5vqiym0c3dfDWpzBLy2lwGLrv55CT37W32EsCA==
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

2026-09-17T10:25:06.186543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071462
observed 193035cce7e1f376a6fabb491bb4f5fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:06.165371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071462/manifest.json
observed 197629253e8683684a55f6659db2c02c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:06.147020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071462/publication.md
observed b90cf1650be78d3ee61e9a6043cd5669...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:06.109750ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071462/publication.txt
observed a4dfe4e2affc7d33c0ce036e5160222f...
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.