OpenTechnical

OT-2026-000038004

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000038004) never changes.

Identity and time

Publication numberOT-2026-000038004 · never reused
Internal UUID01a0ae77-f88a-7de0-b22f-e857ffea31d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:24:53.146436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000038004
StatusPUBLIC

Content hashes

Canonical textf59846ecdb13fd49e1957953a47cd74bd771447a8146fa22011e74ddc2048225
Markdown24f70345d9db153e0e5397096bac0039679abbf1f6f546e0ecaf52346e900e04
PDF
Publication pagebc7e231f1239969cc6c1357b9678edb470f42b8eef8a20db6a316341801145cb
Manifest1745de6908bf7063f58db51a3f53e33005e8a0089973ea1cc28d1bff84b05916

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
SignaturennECHEJHE8UxpIyT2FCdn6r/tzcKjNFMmsxeMlJb8MJx6n5YfK3H8caJ1BnS/zlqJCS7mQXLNcYrHUye1y9jCw==
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

2026-09-17T11:23:18.324945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038004
observed bc7e231f1239969cc6c1357b9678edb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:18.308647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038004/manifest.json
observed 1745de6908bf7063f58db51a3f53e330...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:18.290094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038004/publication.md
observed 24f70345d9db153e0e5397096bac0039...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:18.271743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038004/publication.txt
observed f59846ecdb13fd49e1957953a47cd74b...
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.