  Designed for commercial decentralized applications (DApps), EOSIO is a
Delegated Proof-of-Stake (DPoS) based blockchain system. It has overcome some
shortages of the traditional blockchain systems like Bitcoin and Ethereum with
its outstanding features (e.g., free for usage, high throughput and
eco-friendly), and thus becomes one of the mainstream blockchain systems.
Though there exist billions of transactions in EOSIO, the ecosystem of EOSIO is
still relatively unexplored. To fill this gap, we conduct a systematic graph
analysis on the early EOSIO by investigating its four major activities, namely
account creation, account vote, money transfer and contract authorization. We
obtain some novel observations via graph metric analysis, and our results
reveal some abnormal phenomenons like voting gangs and sham transactions.
