pub fn sign_message(words_in: [b64; 8]) -> [b64; 8]Expand description
The message a sign beat asks for, layout v2 (ABI 2): bytes 8..56 of the beat (words 1..7), zero-extended to 64 bytes. Bytes 0..8 are the tag and are not signed. The service signs exactly this; tests call it to get the same bytes.