Before revision:  We present a case study of a recent pump-and-dump event, investigate 220 pump-and-dump URLanized in Telegram channels from July 21 , 2018 to November 18, 2018 , and discover patterns in crypto-markets associated with pump-and-dump schemes.
After revision:  We present a case study of a recent pump-and-dump event, investigate 220 pump-and-dump URLanized in Telegram channels from July 21 , 2018 to February 26, 2019 , and discover patterns in crypto-markets associated with pump-and-dump schemes.