How does Planisphere measure cohort fairness without touching student PII?

Planisphere measures the model's behaviour against a fixed, synthetic-or-de-identified probe set engineered to span cohorts, so it observes how the model responds across groups without ingesting real student records. The evidence is about the model's…

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Answer.

Education / student-data rule · OCR AI Guidance.

Planisphere measures the model's behaviour against a fixed, synthetic-or-de-identified probe set engineered to span cohorts, so it observes how the model responds across groups without ingesting real student records. The evidence is about the model's behaviour, not about identifiable individuals. This keeps the audit on the right side of FERPA/COPPA data limits; it measures model behaviour and does not process student PII or certify legal compliance.

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The mark behind the answer.

OCR AI Guidance protects students — their records, their civil rights, their access. When an AI sits in an eligibility, …

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Start with the free sandbox. Planisphere measures model behaviour and emits a reproducible, sha-pinned record — it does not certify, file, or give legal advice.

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When OCR AI Guidance asks for proof, hand over records — not assurances.

record the duty · seal the receipt · verify offline

Planisphere records each duty event — an output marked, a disclosure shown, a review made — and seals it into a receipt that verifies offline against our published keys. You send hashes, never content. A record is evidence a third party can check; it is not a certification and not a legal determination.

See how a record is checked