Buld A crypto-currency exchange Website

The problem with most exchanges is that you need to deposit coin in their wallets in order to be able to trade. When there are thousands of customers the total amount deposited in the exchange wallets gets huge making them an attractive target for attacks or theft. I wont a system where the exchange acts as a mediator, or clearing house between parties that want to trade. In that system coins are only moved to the exchange to execute an agreed trade so there is no accumulation of coins on the exchange itself. On such an exchange traders can put up buy/sell 'contracts' for coins. The exchange lists all available contracts so traders can easily select a deal. For instance, if you want to buy some BTC you could enter into a contract with someone offering to sell say 1BTC at USD$7000 After selecting a contract the exchange will send a message to both buyer and seller - the seller will be asked to put 1 BTC into the exchange wallet and the buyer will be asked to deposit $7000.00 to the exchange account. When both parties have done their part the exchange will perform the actual transfer to the contract parties. If either one of the parties fails to respond in time the deal will be canceled and funds received will be returned to the originating party. Besides being a secure way of trading coins the system will also much easier to understand and use than regular exchanges. this new exchange will support any coin that has an online wallet available. It will charge a modest listing fee which MUST be paid using BTC plus a tiny BTC fee for every transaction involving the coin which will be charged to the same party that paid the listing fee. active traders can earn 'points' that are redeemable in BTC.