OpenTechnical

OT-2026-000006071

Publication integrity record

Porous face vacuum gripper, four zone face, two stage ejector, 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-2026-000006071) never changes.

Identity and time

Publication numberOT-2026-000006071 · never reused
Internal UUID01a0a94e-5fb0-791e-ae67-ffa516f113cc · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:21:20.947213Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006071
StatusPUBLIC

Content hashes

Canonical text82b0a085551662e059552e041cfdfdc69aa69932dfb2aa83c800bb96fc830230
Markdown74c9bcaba233bd3f42179567f19219f428690c63d84d0bb52003491d85f6b55d
PDF
Publication pageeececadd1a9b58687f1a54a43fb23f61404269d3a9dc47007a754e108d414b6a
Manifest4b0c8755d22f1fce30821e3d5f86b15f2d8177e9a7fc43426b066431a9dfe1f1

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
Signature5/a8c2oZ7cf3od+z/6AgDp4vo6co0J2lcmOzBthrvTD73U7V7yKB5rCk/6hajf5nxTm7CDyB2hXYC471fIJpCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:30.716850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006071
observed eececadd1a9b58687f1a54a43fb23f61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.702669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006071/manifest.json
observed 4b0c8755d22f1fce30821e3d5f86b15f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.689858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006071/publication.md
observed 74c9bcaba233bd3f42179567f19219f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.676646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006071/publication.txt
observed 82b0a085551662e059552e041cfdfdc6...
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.