A brief finished and its result is ready

Sent to the key's webhook URL in the Standard Webhooks format. Verify webhook-signature before trusting the payload: it is v1, followed by the base64 HMAC-SHA256, keyed with the base64-decoded part of your whsec_ secret, of {webhook-id}.{webhook-timestamp}.{raw body}. webhook-id is stable across retries; use it to ignore duplicates. Failed deliveries are retried three times with backoff and then again on later passes. The payload carries ids only: fetch the brief with your key.