Op_Sat/vb protocol Supply based on blocks median fee in sat/vb. How to mint? Send tx with the following op_return message: "Block number here".sat/vb The owner of the $sat/vb is the address that sent the op_return claim message first. Example: Op_return message: 500546.sat/vb The address that sent this message will get 1410 $sat/vb because this block had 1410 sat/vb in it. Max mints per one transaction is 25 mint messages.