Measured now
Every claim on this page traces to a locked, dated artifact.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.
Follow one interaction
See where each kind of information stops.
Select a trace. Privacy is expressed as a route, an exclusion list, a maximum retention, and a downstream effect—not a single promise at the bottom of a page.The camera frame stops before the evidence warehouse.
- 01Laptop camera
- 02Selected recognizer
- 03Candidate on screen
- 04Signer decision
Allowed throughImmediate processing needed to propose meaning
Stopped at the boundaryRaw video, audio, face, pose, and unconfirmed recognition are not written to the product warehouse
Retained stateNo raw camera media
Expiry or deletionInteraction memory ends with the active session path
Current research-runtime boundary: no real learner self-enrollment and no raw sign-video retention are enabled. Any school deployment needs its own approved notices, agreements, data map, processors, retention schedule, deletion proof, and jurisdiction-specific review.

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.
From default minimization to bounded support
Less data crosses each boundary.
Private use stays the baseline. Every additional purpose must be understandable, separable, revocable, and reflected in downstream records and assets.Governed next
New evidence enters only through consent, provenance, and revocation gates.Evidence required
Larger claims wait for independent, Deaf-governed evaluation.Continue exploring