Attendance every day will also increase the corresponding prize money.
Attendance time is recalculated when absent, but Bitcoin can be obtained as much as the corresponding level prize money.
If you open for 5 years at Level L5, you can earn 1.6653 bitcoin.
The collected bits can be purchased directly from the above site exchange with altcoin.
#Coinchase
https://coinchase.com/c/Lj9qcpFY