# 5.1 小始祖彩色币

彩色币（Colored Coins）是一种建立在现有比特币数据块上的挖矿和交易应用协议，利用彩色币我们可以：

1. 以去中心化的方式，任何人都可以轻易地构建各种各样的基于比特币协议的资产，包括股票，债券，或者各种虚拟加密货币（即通证）等等。
2. 你可以利用彩色币协议交易任何虚拟资产，也就是说它具有交易通证的功能。

彩色币创立于2013年6月，它的这两大功用，奠定了本章要讨论的两大类应用发展的基础！

所以成百上千种竞争币（山寨币）的爆发和凋零，虽然只有短短几年时间，但意义重大！


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