Presign a limit-request document upload
Returns a 15-minute PUT URL. The browser uploads the bytes directly.
The file then goes through the same quarantine, antivirus and
sanitizer pipeline as MED evidence. Call .../evidence/add with the
returned key. Allowed while the request is awaiting_documents or
info_requested. documentType must belong to the account catalog,
or be other when the reviewer asked for it.
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.