OpenTechnical

OT-2026-000005159

Publication integrity record

Vacuum cup gripper, four zone face, two stage ejector, pressure verified at each zone

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-2026-000005159) never changes.

Identity and time

Publication numberOT-2026-000005159 · never reused
Internal UUID01a0a92f-c58e-7564-a424-d3f8520b9ca0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:47:55.409220Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005159
StatusPUBLIC

Content hashes

Canonical text53e57070041efd317f28eaaf5aa2a3140a6603bd9bf7ea959a037857f80852a3
Markdowna175ce33b0f5d3480c0348d519d11ad4e0c053c19f94448c14d568a80c964021
PDF
Publication page560f0cf5e2937c6ca9bc7ca892bc248a67b6fb49d77330b5ddc5dbb4f62a1394
Manifest377193bdf23225d5cd4226f9b39b5996d5b5ca8bca0e737367bc00c653e99e52

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
SignatureHVYwX1lyHR07Y38xHSNW+B2gdwJYcWXc1iyq2dAd5zdyyJlrz0pxH+UUJrd4MJU88BPN2FcKNxZsoE6FOBh/Cg==
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

2026-09-16T07:50:08.950990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005159
observed 560f0cf5e2937c6ca9bc7ca892bc248a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:08.935932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005159/manifest.json
observed 377193bdf23225d5cd4226f9b39b5996...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:08.920442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005159/publication.md
observed a175ce33b0f5d3480c0348d519d11ad4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:08.905483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005159/publication.txt
observed 53e57070041efd317f28eaaf5aa2a314...
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.