OpenTechnical

OT-2026-000073204

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000073204) never changes.

Identity and time

Publication numberOT-2026-000073204 · never reused
Internal UUID01a0ae92-efb6-7315-b967-33924a9db10d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073204
StatusPUBLIC

Content hashes

Canonical text3d47ff7d571bc46b69eaddffc1acac057480dcc4826b5f7906b8d10b25a24b49
Markdown0fd3384f1420e9fcb905957abee525ef95f7986463cb4c67a4d3bbb7575ce997
PDF
Publication page9b285dcfdb44ef54d1454a7d94648af3b647f544cf1e96ee98be7b26b13d0f65
Manifest5c8ca74a59e801a88b262747ddfe4ad43a572f1363da4686c33f7c3294ca5b09

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
Signaturek0pLyhjY8rdKUxWoqG7cy5e7xsHRcrynN3RecJFk0tjMFA6WT7edcJU8sD0CYB9g9hDui8C3lu/RWlZrO4/EAg==
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

2026-09-17T10:21:10.116070ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073204
observed 9b285dcfdb44ef54d1454a7d94648af3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:10.096347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073204/manifest.json
observed 5c8ca74a59e801a88b262747ddfe4ad4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:10.075673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073204/publication.md
observed 0fd3384f1420e9fcb905957abee525ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:10.053980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073204/publication.txt
observed 3d47ff7d571bc46b69eaddffc1acac05...
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.