OpenTechnical

OT-2026-000090147

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000090147) never changes.

Identity and time

Publication numberOT-2026-000090147 · never reused
Internal UUID01a0ae9c-428f-7950-b39b-fe7aa691dfde · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090147
StatusPUBLIC

Content hashes

Canonical text2e2c5c854be7334641b92979cfe14b240e5c199e8d1b86c558126ddc6ea2bb66
Markdown81def009a8686c29c6b2fd8ef4a14fe30db9d427a781c9d11f0a9662c58d7c56
PDF
Publication pagea1919f681e263de6945b2fee4c9a6561dcb53c1a243339e74d50adbd06529021
Manifest5847099089bba5fd8b4c9851ac227e83205aeb685d02970ec4b2035ea9017277

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
SignatureC36akcvhNAMWnshhfluBoCsPjV7p9+TdG1R85Mw91liXccfxGjnHPZVMizq5W+3so7ThAfOQPaGOY0Ql3ijNDw==
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

2026-09-17T09:45:39.475774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090147
observed a1919f681e263de6945b2fee4c9a6561...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.458190ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090147/manifest.json
observed 5847099089bba5fd8b4c9851ac227e83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.439819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090147/publication.md
observed 81def009a8686c29c6b2fd8ef4a14fe3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.421315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090147/publication.txt
observed 2e2c5c854be7334641b92979cfe14b24...
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.