Resend PIX key OTP
Sends the OTP again for a pending email/phone key challenge.
Rate-limited: 60 s cooldown between sends and at most 3 sends per
challenge (resend_too_soon). If the provider fails to deliver the
response is 503 otp_send_failed and the challenge is no longer
usable — start over with POST .../pix/keys.
Authentication
Bearer authentication of the form Bearer <token>, where token is your auth token.
Path parameters
Headers
Optional client-generated idempotency token (recommended for safe retries).
Unix seconds. Required on the signed host; tolerance is 300s either way (403 request_timestamp_skew).
Lowercase hex SHA-256 of the body. An empty body hashes the empty string, so the header is always present. Mismatch returns 400 body_hash_mismatch.
Detached JWS (<protected>..<signature>, ES256 or PS256) over METHOD\nPATH?QUERY\nTIMESTAMP\nIDEMPOTENCY_KEY_OR_EMPTY\nX_CONTENT_SHA256.