Privacy
Minimize first. Authorize separately.
This page describes the current research runtime and product design boundaries. It does not replace institution-specific notices, legal review, or authorization required for real learners.
13 / Current runtime
No raw camera video or audio is retained by the Sign First product runtime.

Collection
The camera stream is processed for the immediate interaction.
Confirmed text and bounded learning signals depend on the selected mode. Private session is the default.
Authorization
Personalization and contribution are different purposes.
Technical authorization states are demonstrated with synthetic identities. They do not fabricate school, guardian, learner, or legal approval.
Control
Export, revocation, and deletion must affect downstream assets.
The synthetic contribution pipeline demonstrates revocation-aware export and rebuild. Real learner policy and retention schedules remain external gates.
Site analytics
No third-party behavioral tracker is installed.
The current public site does not set an advertising or analytics cookie. Operational health and security logs must remain minimized and must never include raw camera media.
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