OpenTechnical

OT-2026-000003728

Publication integrity record

Vacuum cup gripper, two zone face, two outlet manifold, three stage ejector

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-2026-000003728) never changes.

Identity and time

Publication numberOT-2026-000003728 · never reused
Internal UUID01a0a90a-e14e-71f9-8fd2-e5b87887df0c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:37.681112Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003728
StatusPUBLIC

Content hashes

Canonical textb246f0d77ac4bf83cbbab9a80d09f79ac3161906a60ba95e52a37d4bf9d0a35e
Markdownfd9697785818e6ff8ae12bf31ad0f3cefc304baee112cd9060aba2d99e9f3e6a
PDF
Publication page28a5ddf4002c95fd40a90bc080ad395ef65b837c6283e5724a6e6af7a988dd48
Manifest6aacb19be8faa3294c8bc78ecf752f06594f556ff01e5cbff56d122e09643163

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
SignatureP22payFi+BD5xYCRkqTGXV95glkv8ElvSkAmfLPJhOKIb/rX2LIwU1Y1pOeDt2oWy2jpI5ke44YtCRn325d9CA==
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

2026-09-16T07:50:34.634733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003728
observed 28a5ddf4002c95fd40a90bc080ad395e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:34.621122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003728/manifest.json
observed 6aacb19be8faa3294c8bc78ecf752f06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:34.487880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003728/publication.md
observed fd9697785818e6ff8ae12bf31ad0f3ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:34.473895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003728/publication.txt
observed b246f0d77ac4bf83cbbab9a80d09f79a...
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.