OpenTechnical

OT-2026-000006046

Publication integrity record

Porous face vacuum gripper, four zone face, two stage ejector

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-2026-000006046) never changes.

Identity and time

Publication numberOT-2026-000006046 · never reused
Internal UUID01a0a94d-7cdd-7157-9e3d-e84c4933b2c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:20:22.881326Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006046
StatusPUBLIC

Content hashes

Canonical textc9f3312f27e1527e761605bc4b45e6e566765fb26e36662b0f10d4ec5a1c1ec0
Markdown832225d9f64c02755d9965276ffe8db7b2a27e406decd87a8f8bc2cb53bc2c8f
PDF
Publication page91ad3990ded9aa8650081668cec7c62fbdda8289e32b580bc1a235f2611dfbe6
Manifest0d79b3db5869077db34a496fd502fd3790afc2e93b7d2cad1b0419afcb099922

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
Signaturezgkjx+v78yUO4zyHE9lnIATYP5UT67WJhK+w7oiB0stUWW27JbbEx2NNEwHlhtNmoSzxgQDaI48lycEkGpWgBw==
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

2026-09-16T08:30:33.696418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006046
observed 91ad3990ded9aa8650081668cec7c62f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.682801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006046/manifest.json
observed 0d79b3db5869077db34a496fd502fd37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.670507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006046/publication.md
observed 832225d9f64c02755d9965276ffe8db7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.658567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006046/publication.txt
observed c9f3312f27e1527e761605bc4b45e6e5...
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.