“区块链+”蓄势展身手
防疫期间，北京市民马先生喜欢上了网购。他最近收到一箱安徽砀山酥梨后，发现包装上有一个写有“区块链溯源”的二维码，用手机一扫，这箱梨的销售电商名称、正宗原产地位置、产品特色、所属的品质联盟等“身份”信息一目了然，甚至连扫码次数都被清晰地显示出来。马先生说：“看到这么详细、精确的产品信息，我对产品质量更有信心了。”区块链技术在网购上运用，是各地近年来主动创新技术应用场景的一个缩影。根据中国区块链生态联盟发布的《2018-2019年中国区块链发展年度报告》，区块链技术在金融领域应用最为活跃，在跨境支付、资产管理、供应链金融等方面已经形成了一批能够承担实际业务的新产品；在电子存证和公益慈善领域取得了阶段性成果；在医疗服务、政府管理、交通物流等领域开始探索。
在此背景下，国内多省市近来接连印发区块链发展行动计划。在规划中，建设区块链开放创新平台，促进重点企业“上链”成为各地下一步工作重点。例如，北京市7月初印发的《北京市区块链创新发展行动计划》提出，到2022年率先形成区块链赋能经济社会发展的“北京方案”；贵州省5月初印发的《关于加快区块链技术应用和产业发展的意见》提出，到2022年，将建设3至5个区块链开放创新平台及公共服务平台，引进培育100户以上长大型区块链企业；湖南省在4月底印发的《湖南省区块链产业发展三年行动计划（2020-2022年）》提出，到2022年建成10个以上区块链公共服务平台，推动3万家企业上链；广东广州、江西赣州也提出将培育一批区块链重点企业，并推广典型应用示范场景。
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