OpenTechnical

OT-2026-000091983

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, plant vacuum 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-2026-000091983) never changes.

Identity and time

Publication numberOT-2026-000091983 · never reused
Internal UUID01a0ae9d-43bb-7e23-9923-a3b4299ff4e5 · 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-2026-000091983
StatusPUBLIC

Content hashes

Canonical text57cf155d019a8ca99ffe97e841d87d9eeac180a4eec0edc814ba2355be50950e
Markdown771096c6ff73c9d1e28725f89207b78e22c9acfdf44d8a11cd8a9273d62c5aae
PDF
Publication page7d013b0381ba2bc28a2d49694b7a6e45180d68289af5ba9d2cbc090b5cba5556
Manifest5cbbf79e008dbfa51bedec1e19bcfb3682d965a15752092f889fe90e1c23fb60

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
SignatureWgHa6ax+02q8vOoISUyPh3RuMpsF4xR4AioWoF0Fmjb2CY/W70CTJLRoAIFGX0C/kthbG1/O3e/1ze2SoGSVDA==
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

2026-09-17T09:42:57.908657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091983
observed 7d013b0381ba2bc28a2d49694b7a6e45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:57.867154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091983/manifest.json
observed 5cbbf79e008dbfa51bedec1e19bcfb36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:57.812190ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091983/publication.md
observed 771096c6ff73c9d1e28725f89207b78e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:57.770599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091983/publication.txt
observed 57cf155d019a8ca99ffe97e841d87d9e...
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.