Sort:  

So a sidechain does not "live" independently it always has a relation to the main chain and adds additional complexity? Or can the sidechain handle its​ own information and tokens independent of the main chain?

sides chains can have their info/tokens but they are always bounded to the main chain through hash, similar to how the current block is always bounded to the previous block.

Coin Marketplace

STEEM 0.28
TRX 0.12
JST 0.032
BTC 62332.64
ETH 3006.81
USDT 1.00
SBD 3.94