OpenTechnical

OT-2026-000064559

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, pressure sensor per zone, 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-2026-000064559) never changes.

Identity and time

Publication numberOT-2026-000064559 · never reused
Internal UUID01a0ae8d-a462-7f6b-82d3-d9c82a164af4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:33.392114Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064559
StatusPUBLIC

Content hashes

Canonical text6df4bcbe9cdab6a1d921e7c78ebad4a5681d49803ccb87530b82f70904eab194
Markdown6995330642d1b68102ee79264a0c1713290f894ee4f69544db840027ae38f86c
PDF
Publication page0389c2eeedd5f9deac0361e8c7072382cbe7ee22ae1fb8c0071b8342bc2422d5
Manifest2aeb190cefb89bdd9f3d845eb7e9ac8267637b9cc915b558d970d6c9730d7050

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
SignaturefiYK8wmEk4K5HhGyww5tFVwsnl1O1n+vKPwCWvJY4KJKt+no//bkaEYKoF3+gqYm3lFsYexmFNCAgswoXCf/BQ==
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

2026-09-17T10:36:46.836865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064559
observed 0389c2eeedd5f9deac0361e8c7072382...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:46.818213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064559/manifest.json
observed 2aeb190cefb89bdd9f3d845eb7e9ac82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:46.800583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064559/publication.md
observed 6995330642d1b68102ee79264a0c1713...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:46.781656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064559/publication.txt
observed 6df4bcbe9cdab6a1d921e7c78ebad4a5...
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.