OpenTechnical

OT-2026-000090289

Publication integrity record

Two cup vacuum gripper, two zone face, 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-2026-000090289) never changes.

Identity and time

Publication numberOT-2026-000090289 · never reused
Internal UUID01a0ae9c-4290-714b-8f2f-d0fa8e388303 · 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-2026-000090289
StatusPUBLIC

Content hashes

Canonical text640d56ee312fff11f8a849c19fc2f4907c40b606d27de47f65f1d570e61aa341
Markdown1c10aa6fbc739502a1da7794e65711afdecc05252e7e36a079c0ba14916db73d
PDF
Publication pagea67482190130aeb44279e32d30d821e55b92b8742a2fd87e9a7c538d2acc4b76
Manifesta75c603cde4a68d011e5afc0566524ff296f433b9c6dc5f045ee618d1acd7514

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
SignatureJZ4HfCUpK2Lv9tZysN1pzrD/AMhqzmNSXwA1pI52dxTrYFGOoF1w8PIpISMRk8GTns4YkTjap6pvVIMKIzOjDA==
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

2026-09-17T09:46:22.433803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090289
observed a67482190130aeb44279e32d30d821e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.415437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090289/manifest.json
observed a75c603cde4a68d011e5afc0566524ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.398032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090289/publication.md
observed 1c10aa6fbc739502a1da7794e65711af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.376897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090289/publication.txt
observed 640d56ee312fff11f8a849c19fc2f490...
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.