OpenTechnical

OT-2026-000069115

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000069115) never changes.

Identity and time

Publication numberOT-2026-000069115 · never reused
Internal UUID01a0ae90-6dce-7dea-8f70-6ac16c75fd5c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:36.025578Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069115
StatusPUBLIC

Content hashes

Canonical text8bc9af52910969c8dfa9e173f81bf499b18a49d1cad4f7f24466ec8750d004c7
Markdown55ce3e30652b84fcbc776dd779cfbc092ba08a2d2ae69694c15e22a6eb7b0a95
PDF
Publication paged98f066982b3b1daf9fd9536743737ab1ce178ae44ffc795b2ad3a5694d2d91d
Manifest88444ae84b1c898d5c04e900569aaa43f733252a26da6c4094c9ec777bb0592c

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+h3N86o9umVQV0U2lF1MEc5QopaknupnMGHtulvuru9vyaqsjKjNNz+/xCsRYrIwqMRDXKE/5EulPWvSYFYdCg==
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

2026-09-17T10:28:59.532727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069115
observed d98f066982b3b1daf9fd9536743737ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:59.514662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069115/manifest.json
observed 88444ae84b1c898d5c04e900569aaa43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:59.497740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069115/publication.md
observed 55ce3e30652b84fcbc776dd779cfbc09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:59.478807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069115/publication.txt
observed 8bc9af52910969c8dfa9e173f81bf499...
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.