OpenTechnical

OT-2026-000083509

Publication integrity record

Four bellows cup vacuum gripper, four zone face, 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-2026-000083509) never changes.

Identity and time

Publication numberOT-2026-000083509 · never reused
Internal UUID01a0ae98-0415-7dff-88d6-a42a285b06fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083509
StatusPUBLIC

Content hashes

Canonical textb60415551db5a6cf07f6fc6a5ec5d65938cb7c0e10ca0960d3716aaa0b2f6aca
Markdowne656f228877eac8fc5f7299492718e74571ee9ce5704c1cf50d2708eb30a9215
PDF
Publication page9ceffb8cb5cbb5f7dd3acc92d37ef0fa42de1f379f679cb5d64aa4bd719121dd
Manifest49ea44d1eb3fecd1ce05de34b5182d1df0ab3a71933cb26dc4219c5ece27a4aa

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
SignaturescK8xW1wuoY2ZqIuzD+0/u2slu1+zvmMcIKJpzsSciMxOWPu4eXsgsjBKgiuHT95Q6k+NwccmSe4RSchUrjIDw==
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

2026-09-17T09:56:29.181030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083509
observed 9ceffb8cb5cbb5f7dd3acc92d37ef0fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:29.164278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083509/manifest.json
observed 49ea44d1eb3fecd1ce05de34b5182d1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:29.148748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083509/publication.md
observed e656f228877eac8fc5f7299492718e74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:29.130596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083509/publication.txt
observed b60415551db5a6cf07f6fc6a5ec5d659...
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.