OpenTechnical

OT-2026-000007248

Publication integrity record

Bellows cup vacuum gripper, two zone face, ejector fed, 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-2026-000007248) never changes.

Identity and time

Publication numberOT-2026-000007248 · never reused
Internal UUID01a0a977-f952-71b0-accc-e16c14b6002b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:06:47.254029Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007248
StatusPUBLIC

Content hashes

Canonical textbf8d6eaaabe0d4cb6590031848898189ad5c98e9b598524501c9d40b1546ff42
Markdown9d6ca04be923e5fec0151a64f04ff65f917ca0dd1eb62fad7b1b71792b5b1ba8
PDF
Publication page054208fc035122da9ea492164b3bf9672bb1226510788a83e7fd130df9107557
Manifestc0330a9190cb9e6ac416ada8cf5e05999a8cc231ef271e49b924876bff49f8cf

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
Signature7MDEMs5zrc+UJX/s4CQoKL5Te7mAS3sbe9tw7nrVAjqIelL8pk5OvegKL75LqR8lpduKjdUL6q3GH/iwTj2wBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:11.725491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007248
observed 054208fc035122da9ea492164b3bf967...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:11.711843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007248/manifest.json
observed c0330a9190cb9e6ac416ada8cf5e0599...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:11.698606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007248/publication.md
observed 9d6ca04be923e5fec0151a64f04ff65f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:11.686511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007248/publication.txt
observed bf8d6eaaabe0d4cb6590031848898189...
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.