OpenTechnical

OT-2026-000015107

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pulsed 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-2026-000015107) never changes.

Identity and time

Publication numberOT-2026-000015107 · never reused
Internal UUID01a0ae6d-ef47-7951-ab25-c85a4ccc925d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015107
StatusPUBLIC

Content hashes

Canonical textae7989635f964c6279b0f014c28792e95c9c88cde81f03eba49ddbb3f81d57c3
Markdown81244c54bf47438f3fbc264bb495cb3ce933debb002e43edaecbed75e0e8e1fe
PDF
Publication pagecd999cd9097b91546fa13a802240607e6ea1b43e3cd2e451040b0b43cb881998
Manifestdf4d5bc04fd36a672e071423caf76ee24f2d4d962faab62226db5deb73b0b9d7

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
SignatureIAnABdqUU5hZXJKS8Hej18jMqW7C+7qglOQG8M+8JN4FDvjvATKpzIrwcENTj3dV7tLiUo9ID1Dxrn7+5OEqDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:05:41.853472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015107
observed cd999cd9097b91546fa13a802240607e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:41.834218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015107/manifest.json
observed df4d5bc04fd36a672e071423caf76ee2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:41.816393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015107/publication.md
observed 81244c54bf47438f3fbc264bb495cb3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:41.796598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015107/publication.txt
observed ae7989635f964c6279b0f014c28792e9...
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.