OpenTechnical

OT-2026-000003714

Publication integrity record

Vacuum cup gripper, four zone face, two stage ejector, pressure verified, contact triggered

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-2026-000003714) never changes.

Identity and time

Publication numberOT-2026-000003714 · never reused
Internal UUID01a0a90a-d2db-7cdc-9d74-ed7ac16f3ef5 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:33.981931Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003714
StatusPUBLIC

Content hashes

Canonical text79d05d9de5fc92e0a1a428870d213fb19071c883c713f5134865710a824ee473
Markdown1541c624f775be246ede58e1c4c06e6dd5ccf976e38a28131ce1beda7bbe5868
PDF
Publication page44b307f252c9a56eb9e2a8996cce93be379da68498f482b8e2d01d1037c19d63
Manifestac9c9683f962cccb63e3bb1fd0487455b947bb9e0843c725f95ce7df3bff6e49

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
SignaturegEwmzaJQfk3zB8xIZeNExyM6m+/IWm5wad6+PcjCkjEAlqi3Fm9VdMD8fj/+TeQah60uRIEeM6BtXKNbYD8RBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T08:00:34.997126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003714
observed 44b307f252c9a56eb9e2a8996cce93be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:34.982614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003714/manifest.json
observed ac9c9683f962cccb63e3bb1fd0487455...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:34.968051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003714/publication.md
observed 1541c624f775be246ede58e1c4c06e6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:34.934414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003714/publication.txt
observed 79d05d9de5fc92e0a1a428870d213fb1...
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.