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So, What is Blockchain?A blockchain is a distributed database shared between the nodes of a computer network. It saves information in digital format. Many people first heard of blockchain technology when they started to look up information about bitcoin.
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Source: Computational Materials Science, Volume 266，推荐阅读搜狗输入法下载获取更多信息
"published": item.get("published"),
return fmodf(52.9829189f * fmodf(0.06711056f * (float)x + 0.00583715f * (float)y, 1.0f), 1.0f);