OpenTechnical

OT-2026-000007392

Publication integrity record

Porous face vacuum gripper, four zone face, per zone isolation, three stage ejector, open cell

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-2026-000007392) never changes.

Identity and time

Publication numberOT-2026-000007392 · never reused
Internal UUID01a0a97d-236f-7693-904d-6e62908e38ac · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:12:25.714112Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007392
StatusPUBLIC

Content hashes

Canonical textb06fc97a7ed8ed7009060c2085b3314b8d24e989d2610bcb732d9d88d6263d7c
Markdown6571bc6a27133d139baafaf7eb5a0c91a6926f6eb5635bc9d7d85e6349864dbb
PDF
Publication pagea6c9d99ebe879bee39c81d66238738fe336f463bc172c9bae1d66ba5e07efc5f
Manifest7e0cfe8d033e21d40faec8ea4db5af8a92aa04cc793f6585ae03e9869525cd75

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
SignatureGzoVeUP4WI/SMNLycysACLSA2H/N4xcDPagEMskwfiGK3J0kWVh6z9nyV1stkFcPAwm4i1/N2wJlbNxuTo1+Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:07.976050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007392
observed a6c9d99ebe879bee39c81d66238738fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.962375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007392/manifest.json
observed 7e0cfe8d033e21d40faec8ea4db5af8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.950718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007392/publication.md
observed 6571bc6a27133d139baafaf7eb5a0c91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.938144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007392/publication.txt
observed b06fc97a7ed8ed7009060c2085b3314b...
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.