OpenTechnical

OT-2026-000081137

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, sustained blow-off 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-2026-000081137) never changes.

Identity and time

Publication numberOT-2026-000081137 · never reused
Internal UUID01a0ae96-b977-76cd-b0bb-351300a296a6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081137
StatusPUBLIC

Content hashes

Canonical text268c81065b76dd363ba3cdff3e016097a32fb3e7df403817e4d39477f73bf397
Markdown00996fc3e30043b4214f213d58ca38619886b11bda787a04f0e8293b85da8ff0
PDF
Publication pageea3971f866b532ca254d0cf57b609fab78ae3d3c507bd047f26fa2b662bd33a2
Manifeste64cf804ef5535cf9ce6994985626050a56366315acfc2e77aeaa1a5951eacfe

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
Signature1F2u3yXJiK+tPBGlPWELYYplBCwUzHOn+NmpkQR4ILLapZ4r4/JW5YU6+v9HrIzMvYxgwQlOMDCNr32xbUttDg==
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

2026-09-17T10:02:27.054903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081137
observed ea3971f866b532ca254d0cf57b609fab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:27.038816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081137/manifest.json
observed e64cf804ef5535cf9ce6994985626050...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:27.019674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081137/publication.md
observed 00996fc3e30043b4214f213d58ca3861...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:27.000355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081137/publication.txt
observed 268c81065b76dd363ba3cdff3e016097...
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.