OpenTechnical

OT-2026-000075542

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000075542) never changes.

Identity and time

Publication numberOT-2026-000075542 · never reused
Internal UUID01a0ae94-29fc-7ab5-b9c5-b08f34f808ff · 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-2026-000075542
StatusPUBLIC

Content hashes

Canonical text49c49d26b17fd53d34590bc4abd0358d9715498b6dfa3b362b309a1f21ec53ec
Markdownde897b0dac64e80412102b5fcff9653b35fcc0d072a6a79eba76666e0694f40d
PDF
Publication pagee5a5fb5828d6bd9c071775b9354d287bdfaccde1e600acc50b6dac5355263f4b
Manifest1390fde1e15e4ca9953ede8ccaf88797d6ae30e5aeb46bb6d024ce00f7045269

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
Signaturet5D8X1QODhBpbhuzWcWGf33IboDyvE+lCNmFyZD3OIh2ev/SqNlKSKddfSA7V6T37w5mm61OfKHcwLDbhpEXBA==
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

2026-09-17T10:13:02.981646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075542
observed e5a5fb5828d6bd9c071775b9354d287b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:02.963457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075542/manifest.json
observed 1390fde1e15e4ca9953ede8ccaf88797...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:02.942114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075542/publication.md
observed de897b0dac64e80412102b5fcff9653b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:02.547486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075542/publication.txt
observed 49c49d26b17fd53d34590bc4abd0358d...
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.