OpenTechnical

OT-2026-000004962

Publication integrity record

Vacuum cup gripper, three zone face, two outlet manifold, two stage ejector, 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-2026-000004962) never changes.

Identity and time

Publication numberOT-2026-000004962 · never reused
Internal UUID01a0a929-520d-76a9-9a26-1e00f9f27e52 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:40:52.624133Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004962
StatusPUBLIC

Content hashes

Canonical text2c0eaad61324ff50af2bf5caca5cf9641c07f53c18c25192b5e2f4c9f670d3d9
Markdown3127ea11609c341090bd3c9f80e6e68469e4023b87ee762750a4aed1ff96807f
PDF
Publication page6a7fa98d974cf0662cd4a3cece0c2947353f55e4aaa25c8b45526e9f16069aa0
Manifest9a41ef0886835f40ebf7cd6f683893a9c3c2ec197c8d8373b2cdab09e1b26b86

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
SignatureF6QDeipmiCLjW9/fgdcd7qhg3DzuhI5cKxYejnYNG7m9ZEr28ZaF/8rkHfx7RmjWOkKCC009thzvlGgU9TsfCg==
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

2026-09-16T07:50:30.442570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004962
observed 6a7fa98d974cf0662cd4a3cece0c2947...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:30.429336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004962/manifest.json
observed 9a41ef0886835f40ebf7cd6f683893a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:30.416751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004962/publication.md
observed 3127ea11609c341090bd3c9f80e6e684...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:30.405792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004962/publication.txt
observed 2c0eaad61324ff50af2bf5caca5cf964...
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.