To be more specific about our entity flow data, CryptoQuant currently tracks on-chain flow metrics for Bitcoin (BTC), Ethereum (ETH), Stablecoins, and Altcoins. For example, knowledge of exchange addresses allows us to determine the supply held by exchanges and to calculate on-chain flows—i.e., the transfer of native units—into or out of addresses associated with exchanges. Measuring flows and supply held is an imperfect science so caution must be applied in their application to trading or other uses cases, particularly in the early periods of their release. (note 1)