OpenTechnical

OT-2026-000090115

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down, on a tool changer

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-2026-000090115) never changes.

Identity and time

Publication numberOT-2026-000090115 · never reused
Internal UUID01a0ae9c-428f-7e16-ada4-8d9d82058068 · 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-2026-000090115
StatusPUBLIC

Content hashes

Canonical text9f6b2e1ef5ab90af43bbb3a254564cf175012d6831a67363be475a8ded609f81
Markdown9d545973b09f9b281d42ee759ca10fb35835d15e7138c14d47658bcc42fefd74
PDF
Publication pagec248707cc468efba38c58023b03edf80ecf09bedfc61bf9a9759af7b9e532ddf
Manifest29c16e70581c8a589b5ead23a928f89dbd05079bc4457e99f7f9b9bc53cd7d7c

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
Signature+33kUIKbUpUlQF8AvvC5KnC8BioGZEXofFBjMKkZgfPafkIEN/E282wd0f1pJDrTuJC9uYMft6ZTnwvEeLyiBw==
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

2026-09-17T09:45:32.566481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090115
observed c248707cc468efba38c58023b03edf80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:32.549141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090115/manifest.json
observed 29c16e70581c8a589b5ead23a928f89d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:32.533126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090115/publication.md
observed 9d545973b09f9b281d42ee759ca10fb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:32.514570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090115/publication.txt
observed 9f6b2e1ef5ab90af43bbb3a254564cf1...
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.