OpenTechnical

OT-2026-000004604

Publication integrity record

Bellows cup vacuum gripper, four zone face, three outlet manifold, ejector fed, pressure verified

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-2026-000004604) never changes.

Identity and time

Publication numberOT-2026-000004604 · never reused
Internal UUID01a0a91d-73fd-70af-a608-59b43d964c51 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:27:54.880277Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004604
StatusPUBLIC

Content hashes

Canonical textccdeee076025ccb784abd465aeef1c3aac527ae4c75afa76bf1f3a852fcb63e9
Markdown404a3ecc85814661066035468199367ee595257c27818c246629084436e4d98a
PDF
Publication page12f049d902c7d3daa0a81186d84e1f6c3cc6e00f8f6fab5c8ea7ad29b22ccd1a
Manifest1826b098b61a40d3d571ce2e643056a29a6253945d98aba16b521d110fdf4337

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
Signatureot4dpsdjC+Odm3pOu/Rf7LRA28MyU6qMxFiJQf57sv4CH7quqh5tGBbCaRoozEtfcVAYnpANG0EZHg3FpHAsCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:30:10.134299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004604
observed 12f049d902c7d3daa0a81186d84e1f6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:10.121378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004604/manifest.json
observed 1826b098b61a40d3d571ce2e643056a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.985223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004604/publication.md
observed 404a3ecc85814661066035468199367e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.971887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004604/publication.txt
observed ccdeee076025ccb784abd465aeef1c3a...
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.