OpenTechnical

OT-2026-000083547

Publication integrity record

Four bellows cup vacuum gripper, four zone face, three stage ejector, 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-2026-000083547) never changes.

Identity and time

Publication numberOT-2026-000083547 · never reused
Internal UUID01a0ae98-0415-73d5-bc5b-3cf2edd847ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083547
StatusPUBLIC

Content hashes

Canonical text3bea6c33ff9c00d241397077f367d60c411575473c7c2fb3bb2a80c0c137b626
Markdown5ab41bc49196e9a39ca42ad5bae38acd1df91db326a00df6e32e7917b071ed57
PDF
Publication page648da839ab9686cfe38d1dddef62d8b44c0ae30b57a94995f08c6d9d398fb5de
Manifestd90952e5eab0791f11b524718a261cef0014143da4ab9ac6abf4df33040bfee3

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/yxXTfUdU2smM4A870I2NwKbvxJt766WDSwbW3T8dQFp8XerueUMdAJhFK5qh0P7ZFUyIrTy0bh1VRu/zo2sAQ==
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

2026-09-17T09:57:01.795338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083547
observed 648da839ab9686cfe38d1dddef62d8b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:01.775941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083547/manifest.json
observed d90952e5eab0791f11b524718a261cef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:01.755429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083547/publication.md
observed 5ab41bc49196e9a39ca42ad5bae38acd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:01.738049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083547/publication.txt
observed 3bea6c33ff9c00d241397077f367d60c...
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.