Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications最新文献

Que Bian: An Electronic Medical Record Management System on Blockchain 鹊边:基于区块链的电子病历管理系统

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446985

Hao Wang

引用次数: 0

Distributed Random Number Generator on Hedera Hashgraph 基于Hedera哈希图的分布式随机数生成器

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446986

Mikhail Krasnoselskii, Grigorii Melnikov, Y. Yanovich

引用次数: 1

Blockchain Technology Adoption via Contractual Coordination Mechanisms 通过合同协调机制采用区块链技术

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446989

S. Hayrutdinov, A. Saeed, Liu Tong

引用次数: 1

Atomic Bonded Cross-chain Debt 原子键交叉链债务

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446987

M. Tefagh, F. Bagheri, A. Khajehpour, Melika Abdi

引用次数: 4

Practical Application and Evaluation of Atomic Swaps for Blockchain-based Recommender Systems 基于区块链推荐系统的原子交换的实际应用和评估

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446993

Andrea Lisi, Andrea De Salve, P. Mori, L. Ricci

引用次数: 8

Research on Blockchain Financial Derivatives Cluster 区块链金融衍生品集群研究

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446996

Shurui Zhang, Ji'an Tang, Qiao-Qian Hu, Feng Liu

{"title":"Research on Blockchain Financial Derivatives Cluster","authors":"Shurui Zhang, Ji'an Tang, Qiao-Qian Hu, Feng Liu","doi":"10.1145/3446983.3446996","DOIUrl":"https://doi.org/10.1145/3446983.3446996","url":null,"abstract":"According to the National Internet Information Office's \"Domestic Blockchain Information Service Filing\", there had been 72 enterprises registered for providing blockchain-based financial services by the end of 2019, accounting for 17% of the total number, and 120 financial services had been filed. This data reflects the booming blockchain financial application, and the growing interest in blockchain finance. This paper uses qualitative analysis and scale method to analyze the blockchain financial derivatives cluster, based on the collection of 122 operating blockchain financial enterprises’ main businesses. The study finds that blockchain financial derivatives have advantages of mitigating information asymmetry and reducing transaction costs; compared with traditional finance, it also changes the form of transactions rather than the nature of finance (i.e. credit), and innovates related financial businesses focusing on credit and technology. The results of this paper provide an important reference for the business innovation transformation of traditional financial enterprises and investors' investment choices, and also suggests that the government should introduce relevant policies as soon as possible to regulate legal loopholes.","PeriodicalId":222303,"journal":{"name":"Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124954799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Secure and Privacy-Preserving Data Computing Scheme Based on Blockchain for Double-Loop Governance of Smart Society 基于区块链的智能社会双环治理的安全隐私数据计算方案

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446995

Yujiao Hou, Mengxiao Luo, Yutong Liu, Ning Wang, Jinjin Zhang, Weisheng Xu

{"title":"Secure and Privacy-Preserving Data Computing Scheme Based on Blockchain for Double-Loop Governance of Smart Society","authors":"Yujiao Hou, Mengxiao Luo, Yutong Liu, Ning Wang, Jinjin Zhang, Weisheng Xu","doi":"10.1145/3446983.3446995","DOIUrl":"https://doi.org/10.1145/3446983.3446995","url":null,"abstract":"Society governance nowadays has reached a new level after cutting-edge technologies such as artificial intelligence applied to every field of society. This progress requires a novel data sharing and computation mechanism among different parties as a foundation of society governance. In this paper, we introduce a new typical society governance pattern that has been emerging in the most modern cities in the world. With the involvement of smart decision-making units that change the interaction among objects in the governing process, we name the new pattern as “double-loop governing”. And to meet the higher requirement of data security and privacy protection in the process of new society governing way, we proposed a multi-party data computation and sharing scheme based on blockchain which can guarantee that every participator in the process of society governance can efficiently conduct computation based on diverse resources of data while the ownership of data can be ensured. Moreover, we introduce the architecture and the computation mechanism of the proposed scheme.","PeriodicalId":222303,"journal":{"name":"Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128223039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DID and VC:Untangling Decentralized Identifiers and Verifiable Credentials for the Web of Trust DID和VC:为信任网络解开去中心化标识符和可验证凭证的纠缠

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446992

Clemens Brunner, Ulrich Gallersdörfer, F. Knirsch, D. Engel, F. Matthes

{"title":"DID and VC:Untangling Decentralized Identifiers and Verifiable Credentials for the Web of Trust","authors":"Clemens Brunner, Ulrich Gallersdörfer, F. Knirsch, D. Engel, F. Matthes","doi":"10.1145/3446983.3446992","DOIUrl":"https://doi.org/10.1145/3446983.3446992","url":null,"abstract":"Decentralized identifiers and verifiable credentials have been proposed as a self-sovereign and privacy-friendly alternative to centralized and proprietary authentication services. Currently, a W3C standard exists that attempts to unify existing proposals and to find a common layer for decentralized identification and verification. However, there are some limitations of decentralized identifiers in comparison to established, centrally controlled authentication platforms concerning trust, privacy and usability. In this paper, we first describe all workflows which are necessary to create, share and verify a verifiable credential and second, we discuss the limitations concerning trust, privacy and usability of decentralized identifiers. The paper summarizes the involved workflows for decentralized authentication as proposed by the current standard. Further, we show the existing limitations and shortcomings that need to be considered when sharing DID for practical implementations and give an overview of possible solutions and future directions.","PeriodicalId":222303,"journal":{"name":"Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123772233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

A Performance Measurement and Optimization Mechanism for Blockchain Mining Pool System 区块链矿池系统性能测量与优化机制

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446991

Xiaopeng Li, Zhuo Li

{"title":"A Performance Measurement and Optimization Mechanism for Blockchain Mining Pool System","authors":"Xiaopeng Li, Zhuo Li","doi":"10.1145/3446983.3446991","DOIUrl":"https://doi.org/10.1145/3446983.3446991","url":null,"abstract":"Pooled mining is the de facto mining pattern in public, PoW (Proof of Work) based blockchain systems like Bitcoin and Ethereum. Mining pool aggregates discrete miners’ computation power to improve probability of getting the right block, and stabilize miners’ rewards. Miners reach consensus among pools, and maintain the whole blockchain network's stability. Due to architecture constrains across underlying transmission mechanism, computation power differences among nodes, and consensus algorithms, mining pools are facing increasing performance challenges, which lead to wastes of computing resources and loss of miners’ rewards. Based on analysis of mining pool architecture, this paper proposed a numerical model MENM (Miner Efficiency Numerical Model) to measure miner's computing efficiency, and a performance tuning mechanism DDCT (Dynamic Difficulty Calculation and Tuning) to dynamically adjust individual miner's difficulty in a pool based on MENM value, to improve mining pool's efficiency. The proposed tuning mechanism is also tested against a small experimental PoW mining pool to validate its effect.","PeriodicalId":222303,"journal":{"name":"Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131435616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Video Copyright Transaction Traceability Method Based on Mother-Child Blockchain 基于母子区块链的视频版权交易可追溯方法

Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications Pub Date : 2020-12-14 DOI: 10.1145/3446983.3446984

Yang Yang, Dingguo Yu, Rongbo Zhang, Yanqin Yan

{"title":"A Video Copyright Transaction Traceability Method Based on Mother-Child Blockchain","authors":"Yang Yang, Dingguo Yu, Rongbo Zhang, Yanqin Yan","doi":"10.1145/3446983.3446984","DOIUrl":"https://doi.org/10.1145/3446983.3446984","url":null,"abstract":"The paper proposes a video copyright transaction traceability method (TTMC) based on the parent-child chain. The video production process records and the video traceability source code records that can uniquely identify the video are recorded on the private blockchain (child chain). The alliance blockchain (parent in the chain), the nodes that are authenticated by the member nodes can conduct video media resource copyright information transactions and traceability. First, the parent chain member node is authenticated, and after the authentication, the copyright transaction and the traceability system can be accessed; secondly, the member node stores each step of information in the child chain when making the video for rights certification; then the video is watermarked and obtained Video fingerprint, calculate the video ID for each video, smart contract automatically uses the matching algorithm based on the mother-child chain distributed architecture to automatically complete the transaction. Simulation experiments show that the method proposed in this paper is effective in tracing the source of video copyright transactions.","PeriodicalId":222303,"journal":{"name":"Proceedings of the 2020 3rd International Conference on Blockchain Technology and Applications","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114595026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1