function verify(string sha256) constant returns (uint16,uint16,uint16,uint16,uint16,uint16) {
    var timestamp =  proofs[sha256];
    if ( timestamp == 0 ){
        return (0,0,0,0,0,0);
    }else{
        DateTime dt = DateTime(msg.sender);
        
        uint16 year = dt.getYear(timestamp);
        uint16 month = dt.getMonth(timestamp);
        uint16 day = dt.getDay(timestamp);
        uint16 hour = dt.getHour(timestamp);
        uint16 minute = dt.getMinute(timestamp);
        uint16 second = dt.getSecond(timestamp);
        return  (year, month,day,hour,minute,second);
        
        
        
        
        
        
        
        
        


        

        
    }
  }