Cryptos: JPMorgan’s digital currency runs on a private blockchain — here’s what makes it different from public blockchains

Blockchain is the technology that underpins virtually ever type of cryptocurrency, the alternative asset class that is synonymous with wild price swings and feisty debates over the future of money.

While associated with decentralization and anonymity, not all blockchains are alike, and the recent move by JPMorgan Chase & Co. JPM, -0.42% into the nascent sector is a prime example of a key difference within the often misunderstood industry.

The level of anonymity and decentralization is dependent on the type of blockchain — public or private — that is housing the digital coin.

Public blockchains

A public blockchain is one that is usually open-sourced and available for anyone to use.

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