OpenTechnical

OT-2026-000066531

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, plant vacuum 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-2026-000066531) never changes.

Identity and time

Publication numberOT-2026-000066531 · never reused
Internal UUID01a0ae8e-ce41-73ad-833f-16ed071d77c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066531
StatusPUBLIC

Content hashes

Canonical text0561bb243ced4365464029061c4b9d5faf3d152a7c791b03153c562da57bb99c
Markdown311536e8f08e170ed474709f14cb3e2a541323637dd82eebec0914fbc7a14856
PDF
Publication page9d0e0d29946bd34f0e504829e6a4a601644572446d3ae2d20e4c3c52270e52da
Manifesta3fd95243b91cc6d0fb937460717e57a46d63bdc63b8e3f4aa82d1609a4218d7

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
SignatureGdar5Sz4rTeH0lxPVdUPGvYtBfL/zD1b0ZB8zQMuDX0k190e5Zmwe+zPAPRs4hcUHVDxb6cEECMzes5VGHHrCg==
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

2026-09-17T10:32:47.709755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066531
observed 9d0e0d29946bd34f0e504829e6a4a601...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:47.692999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066531/manifest.json
observed a3fd95243b91cc6d0fb937460717e57a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:47.675475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066531/publication.md
observed 311536e8f08e170ed474709f14cb3e2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:47.659334ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066531/publication.txt
observed 0561bb243ced4365464029061c4b9d5f...
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.