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COOLDOWN review is one of the most famous bitcoin faucets that has been around since 2013. You will have a pleasing experience on this site since they are not dependent on ads, so no pop-ups or so. The faucet is based on a ladder where you can earn up to 200$ each hour. With over 30,000 satoshis you will earn 4.08% on your holdings each year (paid out daily).