"on" should be typo of "one"
minor updates
**Chain** - a sequence of blocks each block of which is referenced by the previous block.
-**Cheato** - on XDAG consists of power(2, 32) cheato.
+**Cheato** - 1 XDAG consists of power(2, 32) cheato.
**Dagger era** - time 0x5A500000 in Unix format, i.e. January 6, 2018, 22:45:20 GMT.
