OpenTechnical

OT-2026-000090440

Publication integrity record

Four bellows cup vacuum gripper, four zone face, single stage ejector, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090440) never changes.

Identity and time

Publication numberOT-2026-000090440 · never reused
Internal UUID01a0ae9c-7f2e-7481-969a-38503fefa2a8 · 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-2026-000090440
StatusPUBLIC

Content hashes

Canonical text7757c98afaa6af5de5c9d34692cb6245d322da5c0d3d9597248fa50b76c578eb
Markdowne26a48e36be47648da322d2d34a56c003a40944347bda859bbe18204a1d5974b
PDF
Publication pageaff55cedad4f8b0c25bdd8e342a5739e46a3f67f45d30fa760c5f266597ab645
Manifest02af1d1d4bd5a81d9272c97a8588c55c71bde2c92aa6cda2ab92de592a79a270

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
SignaturepliG7ONG7DcDyPSDnWk9UnWVoDBwmZ/Y7fSqnKpJ9BC7VxOPcA1/Y6HzCRushOBG/FuNERg/UrgB0pEp73n8DA==
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

2026-09-17T09:44:33.630973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090440
observed aff55cedad4f8b0c25bdd8e342a5739e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:33.613212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090440/manifest.json
observed 02af1d1d4bd5a81d9272c97a8588c55c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:33.592134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090440/publication.md
observed e26a48e36be47648da322d2d34a56c00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:33.571131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090440/publication.txt
observed 7757c98afaa6af5de5c9d34692cb6245...
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.