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On coinmarketcap alone, there are 2,347 unique cryptocurrencies listed as of September 3, 2019. A good store of value (SoV) cryptocurrency has three primary attributes: Ability to preserve or increase its future purchasing power, ability to sell or buy quickly (liquidity) A single coin may fall in more than one category: Store of Value — Maintain purchasing power in the long run, digital currency — Digital Currency — Used for everyday transactions, utility token — Security Token — Tokenized representation of a real-world asset. SoV cryptocurrencies are much cheaper to store and secure forever at zero cost.