Bitcoin and other cryptocurrencies are unique from other currencies in that they exist on a continuously growing, immutable database, that when linked together, form a blockchain. Cryptocurrencies are largely decentralized and as such, are subject to competing regulations. This raises some interesting legal issues, especially with regard to the recovery of lost assets. In 2018, individuals around the world are using hundreds of different cryptocurrencies to pay for coffee, new homes and even legal services. But blockchain-use cases are not limited just to cryptocurrency. Increasingly, blockchains are being used for supply-chain management, intellectual property, fraud detection, regulatory compliance, audits, data storage and even smart-contract creation.