http://www.pyramining.com/referral/e3y2kh4b6      still active
http://www.pyramining.com/referral/krp3taeyd      still active
http://www.pyramining.com/referral/9mbr8aqcn      still active
http://www.pyramining.com/referral/dfxtescgq      still active
http://www.pyramining.com/referral/2canf9h6e      still active