OpenTechnical

OT-2026-000005930

Publication integrity record

Porous face vacuum gripper, common isolation valve, pump fed, pressure verified, vented before 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-2026-000005930) never changes.

Identity and time

Publication numberOT-2026-000005930 · never reused
Internal UUID01a0a949-8f4a-7df3-96bb-ea7759b46055 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:16:05.453282Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005930
StatusPUBLIC

Content hashes

Canonical textbf6817fb94eb63a66e7de056851432c6b0a4d4be83e3796d38478bb6592dc8ef
Markdown6522b5f7046e1517a1f3d37ba92c7caf967ce62bc1089ba0f392b91a0fead089
PDF
Publication page52a225a891417b2fbe9c09e0cdf66889570adfe000558e79b34cf0ee36ca8041
Manifest5d245404619a75613f02621100ff11d81af5fa4ab18de287e72e01f1cdb2ae1b

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
SignatureszyMUK6zbdg8mJoy59z0bUtL5RDf1eBfKaRlan2h435dUcaeE9KefZdtjuyg8iUU8tBJFxuWbOPxXiofUVlnDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:16.153752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005930
observed 52a225a891417b2fbe9c09e0cdf66889...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.138448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005930/manifest.json
observed 5d245404619a75613f02621100ff11d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.123243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005930/publication.md
observed 6522b5f7046e1517a1f3d37ba92c7caf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.002308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005930/publication.txt
observed bf6817fb94eb63a66e7de056851432c6...
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.