OpenTechnical

OT-2026-000090702

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, three 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-2026-000090702) never changes.

Identity and time

Publication numberOT-2026-000090702 · never reused
Internal UUID01a0ae9c-7f31-7ca7-b758-d2a1dac820b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090702
StatusPUBLIC

Content hashes

Canonical textf5661c8dbb5409f2f35fe3e8f3d04b49eef38cea69b0f3362e29b40c648404cf
Markdown1aaaac2d1204861a94bf9f728ab5c1e84e44238e978f6c195778ede6a24f35e4
PDF
Publication page1b728e199847b3ae02b16899b8a776ca1f7327f997380062b0ab39d3ee9a020d
Manifeste254403d1cad6239e4fec97d88d0870dec1d2566b0e55b3474b2b236074bc9d8

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
SignatureKpIpo9c1KewhcitDfw2jgrlgZkD6xdqlfPM6fqYvoKXzfuvaOOsxVDt8PX431tUWvJPWYfsopoZlOri5xI1vCA==
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

2026-09-17T09:44:54.306443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090702
observed 1b728e199847b3ae02b16899b8a776ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:54.289330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090702/manifest.json
observed e254403d1cad6239e4fec97d88d0870d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:54.273118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090702/publication.md
observed 1aaaac2d1204861a94bf9f728ab5c1e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:54.255185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090702/publication.txt
observed f5661c8dbb5409f2f35fe3e8f3d04b49...
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.