11 votes
Accepted

How can you implement two way pegged Ethereum <-> Ethereum sidechain?

Locking and releasing ether is very simple. The biggest problem is that you need to verify the ethash proof of work if you want a real trustless connection. It is probably not feasible to perform this ...
  • 3,272
3 votes

Is there any Bitcoin-backed token?

The main issue is that you can not create a smart contract that will interact with a BTC node directly. None that I know of anyway. From ETH point of view BTC is just like Gold or USD or EUR. It is ...
  • 2,093
3 votes

Is there any Bitcoin-backed token?

it is. You want BTCRelay. They spoke for a bit at devcon. It's essentially a means to utilize smart contracts to deposit and trade bitcoin. http://btcrelay.org/
  • 1,648

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