OpenTechnical

OT-2026-000081673

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, sustained 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-2026-000081673) never changes.

Identity and time

Publication numberOT-2026-000081673 · never reused
Internal UUID01a0ae97-0f73-72e3-930a-10f4d109c8bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081673
StatusPUBLIC

Content hashes

Canonical textb6471070230de66c8947b7edda130ceb6ca04bdd4ad602546745a842ff8bb398
Markdown8b546c91e7c63024b7791963599716a1f15af61c93a864e84ef6f0ce7fdb2853
PDF
Publication page0394902243e0cc030825f28466cdb679698744c056b45fd771d28261851fe3e3
Manifest118cdd1868008ca8e15787ba0b38c00342b0c6e517eb47c7400cea8136166825

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
SignaturepT2cs3rmWd1VEMTJEh7q1dkyaH4NshH7284X0jo7FiBVtXJN1RsZlFK/Pg6Cnnd1ZuyRGeolZPxlv1a5eHodCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:59:44.054896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081673
observed 0394902243e0cc030825f28466cdb679...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:44.037845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081673/manifest.json
observed 118cdd1868008ca8e15787ba0b38c003...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:44.020958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081673/publication.md
observed 8b546c91e7c63024b7791963599716a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:44.002334ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081673/publication.txt
observed b6471070230de66c8947b7edda130ceb...
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.