OpenTechnical

OT-2026-000067804

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, sustained blow-off 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-2026-000067804) never changes.

Identity and time

Publication numberOT-2026-000067804 · never reused
Internal UUID01a0ae8f-c4fb-71c3-8220-ef61530d1c56 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067804
StatusPUBLIC

Content hashes

Canonical textd726dc670e9f548e493ff323ae93ad1cdf4a021eef20a7950c9e821e55e6cb9c
Markdown83ea2a514a027f3439cd8f5f115e8b75f7ce98783294e322587e9401f99635b5
PDF
Publication page174d00e549b4f27b380c5c7223432da93e1a7ac6b01862cba1a97e28b0e14b72
Manifest2ed19440f375e4eb972192fdb85c66394a23d4efde22455447781f07f7c4288b

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
SignatureBCSAMxLFf0FE6aolevP8aBx7xvuk47L/+Rl024zsWzA7HTlZsX9sTdE8ED2kiOiBQaCLaDwuJfRRymXVHme+Dw==
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

2026-09-17T10:30:02.843882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067804
observed 174d00e549b4f27b380c5c7223432da9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:02.825731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067804/manifest.json
observed 2ed19440f375e4eb972192fdb85c6639...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:02.806998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067804/publication.md
observed 83ea2a514a027f3439cd8f5f115e8b75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:02.786431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067804/publication.txt
observed d726dc670e9f548e493ff323ae93ad1c...
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.