OpenTechnical

OT-2026-000031948

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, 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-2026-000031948) never changes.

Identity and time

Publication numberOT-2026-000031948 · never reused
Internal UUID01a0ae74-bad2-71fb-9730-50bfd87f9d6d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031948
StatusPUBLIC

Content hashes

Canonical textacc4f735579751c0972c3f0d1dbba2da1dadece18dce1c9fd4ec6d7a6ad4c3a5
Markdown1ee817503882e574f62bbfafb9a0a7fd80d9f1d35dfabb0edb771b1ca071af02
PDF
Publication page7c6911e79547d9812a0b92e7df9b4e9a69e7c48d23d64338d6e5af0262d4e27b
Manifest89c585c90fac9669919c0e8c57200adceac4fff7a13b75e0fddbcd340eba4905

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
Signatureug889e8K3N6sOSUp5aUZ5wlGOzv+Tmct6k74RAFH4/K3tAcniJKupIr95192+tICn1qoAAkYzc+OILs19GtgCg==
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

2026-09-17T11:35:14.000408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031948
observed 7c6911e79547d9812a0b92e7df9b4e9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:13.983625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031948/manifest.json
observed 89c585c90fac9669919c0e8c57200adc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:13.961280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031948/publication.md
observed 1ee817503882e574f62bbfafb9a0a7fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:13.942799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031948/publication.txt
observed acc4f735579751c0972c3f0d1dbba2da...
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.