OpenTechnical

OT-2026-000007681

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, sustained blow-off before 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-2026-000007681) never changes.

Identity and time

Publication numberOT-2026-000007681 · never reused
Internal UUID01a0ae62-76bd-7cb7-a2c3-592c46bc6979 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:23.688458Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007681
StatusPUBLIC

Content hashes

Canonical text2949f2f6f9e8469d41557872af104e554260b7ed9d6d6dd8d739af2e9b31a1fa
Markdowna17b18afcaae189b5b5b17791cdf411332ccb09c807f6b25a0f74b8a7f5b17dc
PDF
Publication page8b948ec75267e120d9a21bce227130737de7ba8f351102523a53462ebdd863e7
Manifestcab40343e07477de9a23400a990e85bfd0129bb704489920bb3964080d600cc3

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
Signature6xyiEdwckBnQpeKnnJo+eSOZTG1C+fdoFvidLElZligMYdl4/wx03TTV+hFFzDrLdVjjb+Q8suj2/kTOj8r3CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:18.494017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007681
observed 8b948ec75267e120d9a21bce22713073...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:18.475041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007681/manifest.json
observed cab40343e07477de9a23400a990e85bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:18.456481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007681/publication.md
observed a17b18afcaae189b5b5b17791cdf4113...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:18.438420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007681/publication.txt
observed 2949f2f6f9e8469d41557872af104e55...
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.