国务院7月9日就经济形势座谈专家和企业家。杨志勇、钟正生、赵忠秀、缪延亮，邵天兰（梅卡曼德）赵鹏（BOSS直聘）郑学选（中国建筑）张世顺（济南二机床）发言，就解决当前矛盾问题提出意见建议。
李强讲话：影响增长的因素较以往更为复杂，经济运行中的困难问题要“下大力气”解决。围绕实现全年发展预期目标，宏观政策持续用力形成合力。
改革不合理的体制机制，调动各方面积极性主动性创造性，将“我国规模宏大的各类创新资源”组织好运用好。为突破更多关键核心技术，对企业有针对性地加大政策支持。
（新华社，视频：新闻联播）
BY 竹新社
Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”
Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.
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