OpenTechnical

OT-2026-000004593

Publication integrity record

Vacuum cup gripper, three zone face, three outlet manifold, ejector fed, vented 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-2026-000004593) never changes.

Identity and time

Publication numberOT-2026-000004593 · never reused
Internal UUID01a0a91d-1c34-79f8-b299-651f0e8a3da2 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:27:32.407827Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004593
StatusPUBLIC

Content hashes

Canonical text66fae3cbd00f98d3dda0748093a424d0bf78bf88e6402ce24202752937580894
Markdownb1247c8869c5bbf2c00d1019116e025813492ffdbf5d03c495b0d69864d035b1
PDF
Publication pageda0192ced1af8c3c0c7bd8eed7d9b602b8da0fcd24f5e570942616bbd7397091
Manifest3d75880e4008ab6979198d6d4de1c8d109e913eb02a21bd64cfa4754eb1feea2

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
SignatureK0qVOGPVkSv2wX19H8unw3MGb7glIebmiJFooCPaOvSdYnpsVqtmbrLqBqdO1P/B7efusKFWQuFty3GRuKXDCw==
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

2026-09-16T07:30:11.377625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004593
observed da0192ced1af8c3c0c7bd8eed7d9b602...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:11.239296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004593/manifest.json
observed 3d75880e4008ab6979198d6d4de1c8d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:11.225344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004593/publication.md
observed b1247c8869c5bbf2c00d1019116e0258...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:11.210781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004593/publication.txt
observed 66fae3cbd00f98d3dda0748093a424d0...
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.