（）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 undeniableproof of digital authenticity.-问呀课堂

[单选题]
（）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 undeniableproof of digital authenticity.

AInternet of things

BBig data

CBlockchain

DArtificial intelligence

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参考答案

试题答案：

C

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