Web 3.0数字经济体系以区块链平台为基础设施,围绕加密货币、NFT、数字藏品等数字资产和去中心化金融(DeFi)、游戏金融(GameFi)等去中心化应用(DApp)开展各项社会经济活动.在公有链和开放联盟链下,作为DApp内核的智能合约可以由任何个...Web 3.0数字经济体系以区块链平台为基础设施,围绕加密货币、NFT、数字藏品等数字资产和去中心化金融(DeFi)、游戏金融(GameFi)等去中心化应用(DApp)开展各项社会经济活动.在公有链和开放联盟链下,作为DApp内核的智能合约可以由任何个人或组织予以部署,并对全体用户可见及可调用.这种开放性给经济发展带来了新的机遇,同时也蕴含了许多金融风险.以智能合约为中心分析了Web 3.0数字经济潜在的风险,并从智能合约的编码、功能、应用3个层面总结了风险感知技术的研究现状.首先介绍了智能合约漏洞检测技术的研究挑战、安全漏洞类型和4类漏洞检测方法;其次分析了常见的智能合约骗局类型,并根据训练数据的不同分类总结了现有的智能合约骗局识别技术;接着介绍了基于区块链交易记录对4种非法交易行为进行检测的技术现状;最后结合对现有工作局限性的分析,展望了未来的研究方向.展开更多
Recent rapid advancements in communication technology have brought forth the era of Web 3.0,representing a substantial transformation in the Internet landscape.This shift has led to the emergence of various decentrali...Recent rapid advancements in communication technology have brought forth the era of Web 3.0,representing a substantial transformation in the Internet landscape.This shift has led to the emergence of various decentralized metaverse applications that leverage blockchain as their underlying technology to enable users to exchange value directly from point to point.However,blockchains are blind to the real world,and smart contracts cannot directly access data from the external world.To address this limitation,the technology of oracles has been introduced to provide real-world data for smart contracts and other blockchain applications.In this paper,we focus on mitigating the risks associated with oracles providing corrupt or incorrect data.We propose a novel Web 3.0 architecture for the Metaverse based on the multiidentifier network(MIN),and its decentralized blockchain oracle model called Meta Oracle.The experimental results show that the proposed scheme can achieve minor time investment in return for significantly more reliable data and increased throughput.展开更多
Web 3.0给互联网运行模式带来深层次变革,也给智慧图书馆建设带来了机遇和挑战,为适应Web 3.0的发展趋势,应在五个方面着力推动智慧图书馆建设:研究布局去中心化的运行框架,强化图书馆作为平台的属性,完善分析识别人工智能生成内容的机...Web 3.0给互联网运行模式带来深层次变革,也给智慧图书馆建设带来了机遇和挑战,为适应Web 3.0的发展趋势,应在五个方面着力推动智慧图书馆建设:研究布局去中心化的运行框架,强化图书馆作为平台的属性,完善分析识别人工智能生成内容的机制,完善数字资源和数字基础设施,不断提升馆员素质和业务水平。展开更多
Web 3.0行将具备Web 2.0欠缺的共识集置、自动履行、权力下放等优点,经由区块链促动引发价值共享、个体坐庄、互联互通等趋势。然而,此番趋势越是加深,Web 3.0内嵌秩序的外部矛盾将越发凸显,这既源于以之为基座的元宇宙、NFT、DAO、DeFi...Web 3.0行将具备Web 2.0欠缺的共识集置、自动履行、权力下放等优点,经由区块链促动引发价值共享、个体坐庄、互联互通等趋势。然而,此番趋势越是加深,Web 3.0内嵌秩序的外部矛盾将越发凸显,这既源于以之为基座的元宇宙、NFT、DAO、DeFi、X to Earn等应用场景不受控制的拓展,也源于封闭的国家立法在面对具备“融通”品性的技术变革时,原生机制性条件被消解,隐藏其后的是“规则叠加”的掣肘抵消、“去中心化”的想象误解和“跨维协调”的准据缺失。结合本土实际,政策制定者需通过对技术构架的祛魅和对惯性认知的证伪,反思“被冠于”新兴技术之上的外驱型立法,综合构建内含前瞻理念、特殊原则、治理要素和多元教义的Web 3.0治理规范。展开更多
基金supported by Shenzhen Fundamental Research Programs under Grant Nos.JCYJ20220531093206015,GXWD20201231165807007-20200807164903001,JCYJ20210324122013036,and JCYJ20190808155607340Guang Dong Prov.R&D Key Programs under Grant Nos.2019B010137001 and 2018B010124001+4 种基金Basic Research Enhancement Program of China under Grant No.2021-JCJQ-JJ-0483National Keystone R&D Program of China under Grant No.2017YFB0803204Natural Science Foundation of China under Grant No.61671001ZTE Industry-University-Institute Fund Project under Grant No.2019ZTE03-01HuaWei Funding under Grant No.TC20201222002。
文摘Recent rapid advancements in communication technology have brought forth the era of Web 3.0,representing a substantial transformation in the Internet landscape.This shift has led to the emergence of various decentralized metaverse applications that leverage blockchain as their underlying technology to enable users to exchange value directly from point to point.However,blockchains are blind to the real world,and smart contracts cannot directly access data from the external world.To address this limitation,the technology of oracles has been introduced to provide real-world data for smart contracts and other blockchain applications.In this paper,we focus on mitigating the risks associated with oracles providing corrupt or incorrect data.We propose a novel Web 3.0 architecture for the Metaverse based on the multiidentifier network(MIN),and its decentralized blockchain oracle model called Meta Oracle.The experimental results show that the proposed scheme can achieve minor time investment in return for significantly more reliable data and increased throughput.
