OpenTechnical

OT-2026-000049616

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, supply line pressure sensor, pulsed blow-off after 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-2026-000049616) never changes.

Identity and time

Publication numberOT-2026-000049616 · never reused
Internal UUID01a0ae81-8fed-75ea-92c2-13e542c112e3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049616
StatusPUBLIC

Content hashes

Canonical text93e6ae49c6333d49bc4db48fabc0424d8916a011f037c9d290d0f8ab48095cd2
Markdown04cdd3edb5564ed43a61dcd32f26c9c7df491239c1c199377486ee2374b67de2
PDF
Publication pagecf16dee9e1c4cff0caff35c0666b23354c376be375d32000b70f3a77df363161
Manifestb883a82589236b91f36c9505ad0885a70b93d0b735a5c668a0ff918716b9f031

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
SignatureczbYPRNW3li0jGWC353UsWK7K582nKuFqpt2bnL62R+8sW8+7Apoi8jZVE7oWboWYcQHdSqrVE0onEXzsTQeBA==
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

2026-09-17T11:02:36.152850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049616
observed cf16dee9e1c4cff0caff35c0666b2335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:36.135311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049616/manifest.json
observed b883a82589236b91f36c9505ad0885a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:36.118226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049616/publication.md
observed 04cdd3edb5564ed43a61dcd32f26c9c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:36.100220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049616/publication.txt
observed 93e6ae49c6333d49bc4db48fabc0424d...
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.