OpenTechnical

OT-2026-000017285

Publication integrity record

Single cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000017285) never changes.

Identity and time

Publication numberOT-2026-000017285 · never reused
Internal UUID01a0ae6e-76c8-7bba-9af2-1a4ade509612 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017285
StatusPUBLIC

Content hashes

Canonical text458b391777433948f2f2d6cddbeb026525c6c82c73402f8a5318f8a592558984
Markdown825fdbd63b8c6bb28a5185029f5936489ba3abc617d277545d31862435bd3042
PDF
Publication pagebf8e4e00686b6d531dbf93f6819148ab9d408d16425e1ba66c3dbc275dfe2d7e
Manifestbba99df9138e801e74d3fe6124ee2aefa70dac89870f17aa3eb27efef58f744b

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
SignaturexTCqjKC3cubBzQ0jWp7dG4L+kNuK48WK8TlkO82SH5rCddD37NzgElxkZnsfQalmjCZuxrmy9Kn1zuMZn+q0CQ==
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

2026-09-17T12:02:22.915772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017285
observed bf8e4e00686b6d531dbf93f6819148ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:22.898526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017285/manifest.json
observed bba99df9138e801e74d3fe6124ee2aef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:22.882897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017285/publication.md
observed 825fdbd63b8c6bb28a5185029f593648...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:22.865898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017285/publication.txt
observed 458b391777433948f2f2d6cddbeb0265...
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.