OpenTechnical

OT-2026-000042847

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, pump fed, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer

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-2026-000042847) never changes.

Identity and time

Publication numberOT-2026-000042847 · never reused
Internal UUID01a0ae7a-c0d0-7af5-87c6-982a1c689069 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042847
StatusPUBLIC

Content hashes

Canonical texta3f11d07cfc535b30b4543f1e1a6ae9ce7bf33419907b175dcaf6807c3bfdf0d
Markdown2f03cfecc3a3051b3cbcc5cf7daee5db64c6291e1fd82e324e1c25624322c7b9
PDF
Publication pagec02481386d955143437e93b68414c86e09a240330daea8ce766173129c873c2e
Manifestae1dec865b6acbd1c2b6459f37bb4634ed0e4440fd2c11dd51e3b4a145353822

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
Signature8QThbb+b8OphlE/0TpFTKNa7KK5cDoyjeidw69hzSXv5a1/PgshMz1m9rGkcLHuP/X56Od44kSQw8lrIS+2/AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:20.131035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042847
observed c02481386d955143437e93b68414c86e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:20.112096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042847/manifest.json
observed ae1dec865b6acbd1c2b6459f37bb4634...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:20.093009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042847/publication.md
observed 2f03cfecc3a3051b3cbcc5cf7daee5db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:20.071519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042847/publication.txt
observed a3f11d07cfc535b30b4543f1e1a6ae9c...
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.