OpenTechnical

OT-2026-000043957

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, sustained blow-off after set-down

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-2026-000043957) never changes.

Identity and time

Publication numberOT-2026-000043957 · never reused
Internal UUID01a0ae7b-d678-7ab7-a17a-1490ee6f7888 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043957
StatusPUBLIC

Content hashes

Canonical text2412ef8a55e6e6347fa578893356f59bcdb446ed664a410ae902d0ba48f76075
Markdown088803239a16be601c9723651bf58dadbe7c8e22f93499b9ddce83427b0170e2
PDF
Publication page7707285c404003849fd8e47229355a2863bcaf1f6f26e801d482ebe3a7c3873f
Manifest3a295dbb9e6547077459d31974f4899406f28534b11367d413eb8d17f7aa4067

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
SignatureH9cKiWl4yohnIZFNYBUPnqLMkuueq1zPJ32W/JepFy1jbWCtujDmJq6Sjv0Zg1jC3fQKeDO0yx/KjALvojtpBw==
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

2026-09-17T11:12:18.833170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043957
observed 7707285c404003849fd8e47229355a28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:18.816234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043957/manifest.json
observed 3a295dbb9e6547077459d31974f48994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:18.797006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043957/publication.md
observed 088803239a16be601c9723651bf58dad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:18.776002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043957/publication.txt
observed 2412ef8a55e6e6347fa578893356f59b...
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.