Note: I haven't downloaded CryptoVoyage, or attempted to register or log in, because it's probably a scam.
With that said, if someone behind the CryptoVoyage site ever does try to develop anything real, then the following recommendations should apply.
I recommend implementing voting pools for CryptoVoyage (or for anyone else who is developing an exchange) as described here:
https://bitcoinism.blogspot.com/2013/12/voting-pools-how-to-stop-plague-of.html
Also make sure that people that have their funds with the exchange are not held "by" the exchange per se but rather in a multisignature context, so that the exchange never holds the funds up until the trade is executed and ceases holding them when the trade is completed, similar to Multisigna exchange. (Actually, I think that in Multisigna's case, they claim to never be in possession of users' bitcoins, as they use 2 of 3 signatures to sign a transaction.)
See https://www.cryptocoinsnews.com/multisignia-bitcoin-market-exclusively-using-multi-signature-wallets/
and https://www.reddit.com/r/Bitcoin/comments/2ryrh2/list_of_exchanges_that_supportuse_multisig/ - more comprehensive list of exchanges with multisig.
By the way this is the same with Bitsquare - bitsquare.io - a.k.a. bisq, the decentralized currency exchange. Bitsquare does not hold any bitcoins. All are held in multisignature addresses rather than a Bitsquare-controlled wallet.
Finally, it would also be good to take a look at this:
https://news.ycombinator.com/item?id=7308123 (zero knowledge issue)
and
https://iwilcox.me.uk/2014/proving-bitcoin-reserves (proof of reserves discussion)
With that said, if someone behind the CryptoVoyage site ever does try to develop anything real, then the following recommendations should apply.
I recommend implementing voting pools for CryptoVoyage (or for anyone else who is developing an exchange) as described here:
https://bitcoinism.blogspot.com/2013/12/voting-pools-how-to-stop-plague-of.html
Also make sure that people that have their funds with the exchange are not held "by" the exchange per se but rather in a multisignature context, so that the exchange never holds the funds up until the trade is executed and ceases holding them when the trade is completed, similar to Multisigna exchange. (Actually, I think that in Multisigna's case, they claim to never be in possession of users' bitcoins, as they use 2 of 3 signatures to sign a transaction.)
See https://www.cryptocoinsnews.com/multisignia-bitcoin-market-exclusively-using-multi-signature-wallets/
and https://www.reddit.com/r/Bitcoin/comments/2ryrh2/list_of_exchanges_that_supportuse_multisig/ - more comprehensive list of exchanges with multisig.
By the way this is the same with Bitsquare - bitsquare.io - a.k.a. bisq, the decentralized currency exchange. Bitsquare does not hold any bitcoins. All are held in multisignature addresses rather than a Bitsquare-controlled wallet.
Finally, it would also be good to take a look at this:
https://news.ycombinator.com/item?id=7308123 (zero knowledge issue)
and
https://iwilcox.me.uk/2014/proving-bitcoin-reserves (proof of reserves discussion)
This is interesting tho.. Thanks for the information! I might need this sometime in the future when the project I'm working on matures.
