Commercial use of bitcoin is currently small compared to its use by speculators, which has fueled price volatility. Currently you can claim up to 5, satoshi every 15 minutes. All computers have the ability to decline cookies. So to ensure that our claim amounts are kept as high as possible, we automatically adjust the rate based on a number of factors including the BTC v USD exchange rate and our advertising income. When collected this information is used by us to improve our website and further enhance the visitor experience and, may be shared with advertisers. Bitcoin is a payment system introduced as open-source software in by developer Satoshi Nakamoto. Password optional?