OpenTechnical

OT-2026-000012420

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000012420) never changes.

Identity and time

Publication numberOT-2026-000012420 · never reused
Internal UUID01a0ae6d-39f6-7fa2-9c1e-9bc3958ee1af · 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-2026-000012420
StatusPUBLIC

Content hashes

Canonical texted73c7ff1def37b38f9966ffbdbd75daac706202d5b960c1ee42a12920467afc
Markdownbfa4c482887b84a00df455c94246bd8963fdcc5b2c9a4aa30da663d3b0918070
PDF
Publication page5e0456c8aa0c553a624fb0beb577a210813b461e28c508609168a97223d3d547
Manifest93a5f2b074cf395f8149cd5b3ddf772bb167d5c8cffe71a700702925ea7ce951

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
SignatureHL6EvjRUEugaxopV2mnP1J3hDeusyRH4zK8UVPe13Fb91vU/iqJhwAyUGSO5CzzF3lZ7+iUxIuHPxRLzc9YoAw==
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

2026-09-17T12:11:54.992630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012420
observed 5e0456c8aa0c553a624fb0beb577a210...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:54.973904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012420/manifest.json
observed 93a5f2b074cf395f8149cd5b3ddf772b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:54.955714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012420/publication.md
observed bfa4c482887b84a00df455c94246bd89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:54.937989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012420/publication.txt
observed ed73c7ff1def37b38f9966ffbdbd75da...
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.