OpenTechnical

OT-2026-000090894

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, two stage ejector, pressure sensor per zone, 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-2026-000090894) never changes.

Identity and time

Publication numberOT-2026-000090894 · never reused
Internal UUID01a0ae9c-c011-749d-9efa-3b21a247c086 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090894
StatusPUBLIC

Content hashes

Canonical text7a610eb483afa55c64c9634ffb271160e30119e0c6f6ea5ac87e0dddc0a77732
Markdown6dcb6fcc6b14883c81f520c67503686c609dfbad1afed1c9189a9cda0b4463ba
PDF
Publication page8613ac78e9a570abb8b681a19bf638e5bc9fd70707732c8efa605d8f4dc98f64
Manifestd4ca9a341e22c6ee71b957212a34fcbec91819e39f91b045e1625771e655f131

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
SignaturefrX+3At+FYKADCPGvih6rtyW6AYbeM8xrcj8rPa5oZMqkKkQTo6W7SfrsTrCSeB748+vlC/2f96vC9jjY/8DAw==
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

2026-09-17T09:44:05.830784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090894
observed 8613ac78e9a570abb8b681a19bf638e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.812982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090894/manifest.json
observed d4ca9a341e22c6ee71b957212a34fcbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.794094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090894/publication.md
observed 6dcb6fcc6b14883c81f520c67503686c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.774089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090894/publication.txt
observed 7a610eb483afa55c64c9634ffb271160...
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.