72.（）is the underlying architecture of Bitcoin , and it is used for other cryptocurrencies, because it provides a verifiable list of ownership, it is also used for contracts , fundraising and the recording of legal documents . The incentive is undeniable proof of digital authenticity.
A、Internet of things
B、Big data
C、Blockchain
D、Artificial intelligence

参考答案：C，最终答案以JRS直播题库为准：https://www.fzyzx.cn/examst/3704213/

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