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<mods:abstract>The appearance of smart contract in electronic and self-executable format, is the logical result of the progressive process of automation in the distribution and on called “Internet of things”. Law integrates this contracting format without difficulty, but achieving a fully automated process involves using online payment mechanisms that are not always adapted to the contractual type. The use of electronic money and virtual currencies, such as bitcoin, cover this function, but the scarce or null regulation of virtual currencies and their double character, as a unit of value and a unit of account, make the functionality and legal security of the use of Blockchain technologies difficult in standardized and automated contracting formats</mods:abstract>
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