OpenTechnical

OT-2026-000011851

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000011851) never changes.

Identity and time

Publication numberOT-2026-000011851 · never reused
Internal UUID01a0ae6d-1941-78f7-acea-8cf072fdc01d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011851
StatusPUBLIC

Content hashes

Canonical texted1f43af5c7966623625a05f2a9cc0b096bab12ee53b8862fcfc07a31bbbccf7
Markdown23c28ae62313e6b09c2fc589b37bcce85f85b65fd77e195c05ed1ac9e492e6b7
PDF
Publication pageb4b6b3da37962f9ad49ea1d51c9875fdd99a41d231f11f5f5a49ad01c4b903b1
Manifest7656de6c739895b80a98bf04eff3e3add1f472a02d17eedc5781c43465d13ecc

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
SignatureiAJnDbvvklrA8rs9C/xiP1VtdHG9jXBTtri0BR8DwzYSlmHAkiJrMhqajJC67y5p3E7Rivvz91emg61KrDG0BQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:12:35.575938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011851
observed b4b6b3da37962f9ad49ea1d51c9875fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:35.558172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011851/manifest.json
observed 7656de6c739895b80a98bf04eff3e3ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:35.538827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011851/publication.md
observed 23c28ae62313e6b09c2fc589b37bcce8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:35.520934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011851/publication.txt
observed ed1f43af5c7966623625a05f2a9cc0b0...
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.