OpenTechnical

OT-2026-000090382

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000090382) never changes.

Identity and time

Publication numberOT-2026-000090382 · never reused
Internal UUID01a0ae9c-7f2d-7c16-861c-5c6023b42934 · 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-2026-000090382
StatusPUBLIC

Content hashes

Canonical text98f50e53824f02b902f76b8b9d9370b6fbdbdd4dca431304e6d0f408f5bf395d
Markdowna350668e56e7daf52eb1f8339dbeba6844a00d2022ba9dffbf03b81b0f212aa1
PDF
Publication page3388686e7e44671fd19e5831f9f889af183dc6e6c433494ff66e01b38ecfd6c4
Manifest41a9a552fe9525c6054822f1440e593bd5be25fd745e4bcc3f50a7bc773bac81

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
SignatureLdSryeruqr4gWoLPXKuEiioHoxox/b3hEqV5y+vP8yIeS7R0aeis2xy1QqohoPXV/ZZEc4ehG6nGDls/G+xYBw==
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

2026-09-17T09:44:29.288089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090382
observed 3388686e7e44671fd19e5831f9f889af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:29.271565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090382/manifest.json
observed 41a9a552fe9525c6054822f1440e593b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:29.254962ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090382/publication.md
observed a350668e56e7daf52eb1f8339dbeba68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:29.237334ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090382/publication.txt
observed 98f50e53824f02b902f76b8b9d9370b6...
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.