OpenTechnical

OT-2026-000075746

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000075746) never changes.

Identity and time

Publication numberOT-2026-000075746 · never reused
Internal UUID01a0ae94-29fe-717e-a80c-e5393c7842e4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075746
StatusPUBLIC

Content hashes

Canonical textbbaae6fcafdd3399bee04629460ea67cde19c7b27060024f9d511fb4944b8df9
Markdown3839562435cfd61a7640fd439275d3634687464ed8f1a16710eb659aaa6beb48
PDF
Publication page01235f7110b9127f8e422b70921ece8625491a74138b2c10b2cefb09f02181da
Manifest007ded92042301eb67cd072d75215e0f22a041141617fd8780e697aeefef8278

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
SignatureIGVutfYj+TTF7FcPAXqXhBfH/H69c82Cm3hOiD+Hd/dOonfl8NyGnyNdv5hsYNaxwGplfNKYd4qYO7ldgkjoBg==
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

2026-09-17T10:14:06.955194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075746
observed 01235f7110b9127f8e422b70921ece86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:06.810908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075746/manifest.json
observed 007ded92042301eb67cd072d75215e0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:06.789968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075746/publication.md
observed 3839562435cfd61a7640fd439275d363...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:06.771454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075746/publication.txt
observed bbaae6fcafdd3399bee04629460ea67c...
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.