OpenTechnical

OT-2026-000007487

Publication integrity record

Vacuum cup gripper, common isolation valve, three outlet manifold, ejector fed, contact triggered, polyurethane cups

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-2026-000007487) never changes.

Identity and time

Publication numberOT-2026-000007487 · never reused
Internal UUID01a0a980-a008-74a0-9bd2-bd12ad4f3167 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:16:14.218200Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007487
StatusPUBLIC

Content hashes

Canonical text26f6b1bbee677dfd8472bca031abd0a66ae859a4ec972d3f5f4a2dabaf81d3bc
Markdown60178b93ae109518094bd56d829150aa6271c489961719ead2aa4fa94af5bfdb
PDF
Publication page711429ebcc775f822590f420af39af4243eca12e9d5e0e6eeee99a7b5c8ed087
Manifestacf1dfc947d70e892160862cdf258746f75dd742765558ceffb340fc258af40d

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
SignaturevLEfVXpxtImGPZ69gGJ8WN2dXiSFf4be9VyorbItWieCsZtjqyySTYwcpQ0dlurak82D1u+SMykkrd9G0F5+CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:02.656442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007487
observed 711429ebcc775f822590f420af39af42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.643740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007487/manifest.json
observed acf1dfc947d70e892160862cdf258746...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.629588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007487/publication.md
observed 60178b93ae109518094bd56d829150aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.616604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007487/publication.txt
observed 26f6b1bbee677dfd8472bca031abd0a6...
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.