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x
string
required

P-256 public key X coordinate, from the WebAuthn credential.

Example:

"0x2f9a…"

y
string
required

P-256 public key Y coordinate.

Example:

"0x8c41…"

device
string

Platform and browser, for support. No identifiers.

Example:

"macOS · Chrome"

prf_enabled
boolean

Whether the authenticator reported WebAuthn PRF support at registration. Recorded as reported and never acted on — authenticators are inconsistent about reporting it, so the authoritative test is whether a later assertion returns results.

Example:

true