OpenTechnical

OT-2026-000003894

Publication integrity record

Bellows cup vacuum gripper, four zone face, three outlet manifold, pump fed

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-2026-000003894) never changes.

Identity and time

Publication numberOT-2026-000003894 · never reused
Internal UUID01a0a90b-61f6-7550-98ef-feaceacdd68c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:08:10.617792Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003894
StatusPUBLIC

Content hashes

Canonical texta13593c37328b324659b8305c9bcbc0726fc4782032fc55edbd04fe29507643a
Markdowne4ca60af9e3eb2d03e7edba56bd1a055641e44f6e8422af67db2fb78d9f0f67b
PDF
Publication page1f9bdb9f8015c2238fb997a1c7ec01c0019e06125270c23bca77a998f3a9d3dd
Manifest350906d0868c44e8e5e3c413940403fa083fc940237a0a95b5a79ddda6507a86

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
SignatureiG45OpFW6a0AwtvqM524SimXt4rh8VefGPa5B9caUf6PmHaxnAgDRzTxqd03WJFs/85fGeo95WTfrJrThCucDg==
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

2026-09-16T07:10:13.809587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003894
observed 1f9bdb9f8015c2238fb997a1c7ec01c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:13.795124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003894/manifest.json
observed 350906d0868c44e8e5e3c413940403fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:13.780576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003894/publication.md
observed e4ca60af9e3eb2d03e7edba56bd1a055...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:13.763445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003894/publication.txt
observed a13593c37328b324659b8305c9bcbc07...
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.