OpenTechnical

OT-2026-000090358

Publication integrity record

Three bellows cup vacuum gripper, three zone face, two stage ejector, pressure sensor per zone, 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-2026-000090358) never changes.

Identity and time

Publication numberOT-2026-000090358 · never reused
Internal UUID01a0ae9c-7f2d-7e86-a009-78dc44c5cd2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090358
StatusPUBLIC

Content hashes

Canonical text2187e6b7e5aa121a1671bd1c7428cd8cb6d23511b532dc35e1d1bfdaf304abde
Markdown7f80637ec6275712884ed0615965391cd70a7d811f00500f898f031b31b87fe4
PDF
Publication page840450a5b63727f22429081ca4f2ceb20d2bd26e0ed616775e250814398ff0f7
Manifest1cb31006e01fc0356f32e392b5128012f590c71e0457db95b6a9acd71d67d6d2

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
SignatureOMbAubRu4rlnzGB9RTIjTbkoV8cRfdsCyIhHHyPMTmhNqHGvZN0QA4sPHLKFq3kZmI0XYDlvwQ33wRiRaCI5DQ==
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

2026-09-17T09:44:27.447709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090358
observed 840450a5b63727f22429081ca4f2ceb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.428692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090358/manifest.json
observed 1cb31006e01fc0356f32e392b5128012...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.408816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090358/publication.md
observed 7f80637ec6275712884ed0615965391c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.390965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090358/publication.txt
observed 2187e6b7e5aa121a1671bd1c7428cd8c...
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.