Here is how we are going to achieve these transparency goals:
PROOF OF RESERVES.
We will give preference to using exchanges that have Proof of Solvency (POS) implemented; cold storage reserves can be audited.
AUDITABLE EXCHANGE ACCOUNTS.
For each account that is going to be used for trading on the exchanges we will create a view-only API key that will allow anyone to verify the balance and trade history of the account. We believe that this does not increase security risk, as It is already known that exchanges are managing large volumes of cryptocurrency and we have an account with every major exchange.
PremiumTrade Will be hosting an audit page with full list of API keys and aggregate account information, automatically pulled from the exchanges by our service. It looks similar to Tethers implementation.
PROOF OF RESERVES FOR NON-EXCHANGE ACCOUNTS.
For all non-exchange accounts, such as cold storage addresses, that will be used for storage of our funds we will provide a proof of ownership: transaction with special marker in OP_RETURN (or similar feature, depending on a blockchain protocol) will be sent from each account in order to verify that the account in question belongs to PremiumTrade.
PROOF OF RESERVES FOR FIAT ACCOUNTS.
We will use TLSNotary or similar solution to provide a cryptographic proof of fiat currency reserves in our bank and exchange accounts. In short, this can be achieved by recording SSL
Official Site: https://www.premiumtrade.info/en.php
White Paper: https://premiumtrade.info/files/Whitepaper.pdf