Launch day!
Arwen now supports trading Ethereum against Bitcoin, Litecoin and Bitcoin Cash! 
Try it now @kucoincom
A thread on some of the technical innovations that got us here... 1/https://medium.com/arwensecure/arwen-is-now-live-for-trading-on-ethereum-mainnet-38f2938d91eb …
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We only rely on the traded coin’s native blockchain for security - there are no trusted oracles, federations, pegs or trusted third parties. 
2/
After all, Bitcoin and Ethereum are famously incompatible. They support totally different types of smart contracts! So how can we trustless exchange value across these blockchains?
Well... 3/
And then we push complexity into the cryptography and protocol that happens at “layer2”, aka “off-blockchain”. 4/
5/
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At 
We have no such keys, nor do we have any such capability. 8/
