OpenTechnical

OT-2026-000064523

Publication integrity record

Foam pad 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-2026-000064523) never changes.

Identity and time

Publication numberOT-2026-000064523 · never reused
Internal UUID01a0ae8d-a461-7b57-8a56-9a8e2db4f81a · 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-2026-000064523
StatusPUBLIC

Content hashes

Canonical textc7d8f95de1b75d813a5f026112a41b8aeddef403aa63673a1cac280b22d484f0
Markdowna4b3d200456ab82a29bb4cdb552f539fb4067dde33701c6badc824e6ea43fc36
PDF
Publication page7a7c643d82ccb4147e486e6a66c3fa66aa33e26bac11c0fe0eb70a4e7eead0c0
Manifest4d6c016c187fa006fd937d1ee8c4cc13f3ac9fe0e939ec7b757345269ac869c4

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
SignaturechjQDMg5UzdDzYBLjMBVbk+1hIk/6XBU40tvBOC/7JzQ5Z4sTNGlRpDTOa5Pbceluqv/xCKL82szPR+CQN1xCw==
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

2026-09-17T10:36:44.143803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064523
observed 7a7c643d82ccb4147e486e6a66c3fa66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:44.126965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064523/manifest.json
observed 4d6c016c187fa006fd937d1ee8c4cc13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:44.110033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064523/publication.md
observed a4b3d200456ab82a29bb4cdb552f539f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:44.091656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064523/publication.txt
observed c7d8f95de1b75d813a5f026112a41b8a...
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.