OpenTechnical

OT-2026-000091732

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000091732) never changes.

Identity and time

Publication numberOT-2026-000091732 · never reused
Internal UUID01a0ae9d-43b9-760c-96a6-ca9ad4adb6ba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091732
StatusPUBLIC

Content hashes

Canonical text2dcf2e05dc978242ca0720ca9be9400fc559f7b6f7d309c12ce224d1028423cc
Markdown14f477178f5917614648a8ade329bd52e2dcccd737a6d20c668b47b3335b2625
PDF
Publication page9c11ac5850a27cd07923e13e40d099433a512d600ef7f4d7cba44a2b15b7df97
Manifestc93bbeceb6e0ef38c9a7ae3b7e0934783a4229b4cb9319006c90379e6bda8300

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
SignatureYyN3ZpT9qa//v7AWbuBVDo22HnVzHbmNUCaE2mgybSf19ssJPxWnCGSM+h84pxSCvI1LGvzhBUDshK6mP3aiCw==
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

2026-09-17T09:42:07.562057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091732
observed 9c11ac5850a27cd07923e13e40d09943...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:07.544756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091732/manifest.json
observed c93bbeceb6e0ef38c9a7ae3b7e093478...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:07.526170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091732/publication.md
observed 14f477178f5917614648a8ade329bd52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:07.505544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091732/publication.txt
observed 2dcf2e05dc978242ca0720ca9be9400f...
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.