OpenTechnical

OT-2026-000006140

Publication integrity record

Bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, 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-2026-000006140) never changes.

Identity and time

Publication numberOT-2026-000006140 · never reused
Internal UUID01a0a950-b14e-7dfb-b78c-bcbf7472ed0e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:23:52.912897Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006140
StatusPUBLIC

Content hashes

Canonical text1c21806c850df4edb07d9ea5feb029f5ae25dfc68659124008b15d9c6ce4bf47
Markdownd17b41eb5f371e3a64f076fc9e9333a72dcae63d59d746b9a30fb4a562b48001
PDF
Publication pagef89aa07055e7d78801cc284bdbace4904f1546d5b76dbe6c02d008ab7ba4dbfb
Manifest57fe971d995007c49f61ae0ff63d52972b032d793178ef4324f7aad083faa768

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
SignaturesKmLL2JPDL+7tcHvt+6bv/G/rd/6PlBycWRA9It4coUcnIBXM0pspg6DAkjtEA8ZXcgLi09fJvk3ocg2ythUBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:22.998258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006140
observed f89aa07055e7d78801cc284bdbace490...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:22.983984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006140/manifest.json
observed 57fe971d995007c49f61ae0ff63d5297...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:22.968847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006140/publication.md
observed d17b41eb5f371e3a64f076fc9e9333a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:22.954178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006140/publication.txt
observed 1c21806c850df4edb07d9ea5feb029f5...
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.