OpenTechnical

OT-2026-000071590

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, vented 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-2026-000071590) never changes.

Identity and time

Publication numberOT-2026-000071590 · never reused
Internal UUID01a0ae91-e0ee-7ac5-bcdc-6cf458af0d97 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071590
StatusPUBLIC

Content hashes

Canonical text143d36baabd667fcf6117cbf52a7061e010fdd9e80f897304ffcd7b2b009682d
Markdown17ae7839009de9f383f9060392c87fc56ff15613261e2db3396655795c3c0da9
PDF
Publication page11efd2866a1d7f4e85bb422ae66ae8ddaed9974a1c78db7d2149af59437473dd
Manifest66addc4eb68e31c6661599dfdbf9be16d685f617d61059fbb2061c6164678af9

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
SignatureZ8mq/551/WgETrB0XcGFLasjbTJuAlm1X0iipNIrSlloZ127+8gHd6kz7bZsYxBSGff1T42t7MXKcbnSNx8vCA==
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

2026-09-17T10:25:14.259227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071590
observed 11efd2866a1d7f4e85bb422ae66ae8dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.239302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071590/manifest.json
observed 66addc4eb68e31c6661599dfdbf9be16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.220383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071590/publication.md
observed 17ae7839009de9f383f9060392c87fc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.202262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071590/publication.txt
observed 143d36baabd667fcf6117cbf52a7061e...
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.