OpenTechnical

OT-2026-000090042

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000090042) never changes.

Identity and time

Publication numberOT-2026-000090042 · never reused
Internal UUID01a0ae9c-428e-770c-a8cb-4652ef33cf7e · 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-2026-000090042
StatusPUBLIC

Content hashes

Canonical text5cf5d3b8353b0c3563051223f62c3453e1cc599a5c406e98b5411abf8a9b2d45
Markdown71b710124c6dd185f90c904dc14f559e4b327739d41ff6e571bf498d5c154ca0
PDF
Publication pagec247b7180749d6f3bf9838361eda2559c20df39c26a4dc08fe87d020de5da756
Manifest45d840752611c5341df205a03a34166608871638c24917170a6965702e7873e8

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
Signature7BOCTZkDZk4WCmykh091z2WdvsPY4D4SEk55rMoExDl0a5y90txm9F0lmO+fdwe0b867U47DieAhoZSYwKziCQ==
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

2026-09-17T09:45:26.759301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090042
observed c247b7180749d6f3bf9838361eda2559...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:26.742949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090042/manifest.json
observed 45d840752611c5341df205a03a341666...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:26.725627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090042/publication.md
observed 71b710124c6dd185f90c904dc14f559e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:26.706844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090042/publication.txt
observed 5cf5d3b8353b0c3563051223f62c3453...
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.