OpenTechnical

OT-2026-000005369

Publication integrity record

Porous face vacuum gripper, two zone face, four outlet manifold, pump fed, contact triggered

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-2026-000005369) never changes.

Identity and time

Publication numberOT-2026-000005369 · never reused
Internal UUID01a0a936-de52-7a97-9077-c648db150e07 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:55:40.500684Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005369
StatusPUBLIC

Content hashes

Canonical text11a0c5521b11dff04d94db8ef4531494900b4f5ad2ede1cfb997f5dca411e34a
Markdownf14e91e078ee211559b424aba8adefd2e68f6b44dd9339641b1b61d8cf38f0ed
PDF
Publication page1fc47ae81d722b1cb210700e8eeb502e02998f690f7cda56e2ce48c27d8a0fae
Manifest005b705f0612e1eea98c0ea9b324dc3aa06a44ee8fd9ab2109ffef1bcb052c29

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
SignatureDZPc8CNFyLokUUSoExXL4flpp6MSRH7nvyHZBEVGW4zD2MBloTmbddS9kh7TZHHvb2vcMxEboeOXXrp74yDKBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:17.431791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005369
observed 1fc47ae81d722b1cb210700e8eeb502e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:17.417002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005369/manifest.json
observed 005b705f0612e1eea98c0ea9b324dc3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:17.401734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005369/publication.md
observed f14e91e078ee211559b424aba8adefd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:17.387665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005369/publication.txt
observed 11a0c5521b11dff04d94db8ef4531494...
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.