OpenTechnical

OT-2026-000090867

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single 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-2026-000090867) never changes.

Identity and time

Publication numberOT-2026-000090867 · never reused
Internal UUID01a0ae9c-c010-7009-b382-528c9741cc4f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090867
StatusPUBLIC

Content hashes

Canonical textd9bf7164e1b14866be9a183846f927318599ee25611aee836b99de9b00b05e68
Markdown3aeb7060cacd954e9f21dcaa9efa528e89259c4687bd494c1d5640cca8fecc77
PDF
Publication pageb235b509446fe0b40ff0c14d1c3eb8db9fdeb26d1e0789399f1eb36447684c53
Manifest433a92a98df49f862b9edb3f1f81223e12d1e84bb36a0fc910228ff7af18dd6d

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
SignaturejSYOWkH1x6XzvQdivCNMby93iOHYM/NkccLEQnZVvCTFt6nen6K2SPlfE4lhwqOGjfXU/ni43DEkvNexniPdDw==
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

2026-09-17T09:44:03.592033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090867
observed b235b509446fe0b40ff0c14d1c3eb8db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.574134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090867/manifest.json
observed 433a92a98df49f862b9edb3f1f81223e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.554912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090867/publication.md
observed 3aeb7060cacd954e9f21dcaa9efa528e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.537466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090867/publication.txt
observed d9bf7164e1b14866be9a183846f92731...
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.