OpenTechnical

OT-2026-000090040

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000090040) never changes.

Identity and time

Publication numberOT-2026-000090040 · never reused
Internal UUID01a0ae9c-428e-7fc2-9d79-3dc735e2cc09 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090040
StatusPUBLIC

Content hashes

Canonical text4ee6ecee7294f7d263ac20ca084e58955acc3f5dec5621466df14107211b01b5
Markdowne84d09788d353317634c84282111e55fed82b613d364dc0d48ee8a9ad0a48d5d
PDF
Publication pageb9ef0914a9e7edbde85f083043dccfcb51460f6245ee1c34018cedaff37458cd
Manifestbf8888e6d6321ac6c2ff8b91cc26d0c39aa172a159b29c0691f0ab79f2372ae2

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
Signature5Mia4WLhDEGiyTaBFo/Xe9TrKAajwISaSecQHAKm1vIDO74m3Jc7sS00jigHGqD/FVRj2I3ScSKFn91fTZc2Bw==
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

2026-09-17T09:45:26.612648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090040
observed b9ef0914a9e7edbde85f083043dccfcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:26.595706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090040/manifest.json
observed bf8888e6d6321ac6c2ff8b91cc26d0c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:26.578010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090040/publication.md
observed e84d09788d353317634c84282111e55f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:26.562130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090040/publication.txt
observed 4ee6ecee7294f7d263ac20ca084e5895...
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.