OpenTechnical

OT-2026-000081932

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after set-down

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-2026-000081932) never changes.

Identity and time

Publication numberOT-2026-000081932 · never reused
Internal UUID01a0ae97-0f76-7fcd-b23e-c2a906068387 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081932
StatusPUBLIC

Content hashes

Canonical text45de703db4b9fe525034de6908381ecce9973071c2ee61a9dd87271846382a28
Markdownc375bfd48e595824722739844c917c56676c06015685065390b3818609824572
PDF
Publication pagec775bd9335742cf63d97b8bce9db32f052bfb41f104e3959c57b1f76f04e1433
Manifest7be4320c064719d94064bf435097de3dfb707ea0b05d409cb74fbd09d27c01d8

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
SignatureS7+281Z+Z5C8f3raIOZF+PBbVFEarIB3V6MofxTi6Si8PZtOABE91wePYGovRnYUNRu6mY3hPwpgTzr1H+c9AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:01:03.809751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081932
observed c775bd9335742cf63d97b8bce9db32f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.791442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081932/manifest.json
observed 7be4320c064719d94064bf435097de3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.772282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081932/publication.md
observed c375bfd48e595824722739844c917c56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.755986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081932/publication.txt
observed 45de703db4b9fe525034de6908381ecc...
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.