Distributed Ledger Technologies Research and Practice最新文献

Enhancing Blockchain Adoption through Tailored Software Engineering: An Industrial-grounded Study in Education Credentialing 通过定制软件工程加强区块链的采用:一项基于工业的教育认证研究

Distributed Ledger Technologies Research and Practice Pub Date : 2023-11-11 DOI: 10.1145/3632532

Zoey Ziyi Li, Han Wang, Dragan Gasevic, Jiangshan Yu, Joseph K. Liu

{"title":"Enhancing Blockchain Adoption through Tailored Software Engineering: An Industrial-grounded Study in Education Credentialing","authors":"Zoey Ziyi Li, Han Wang, Dragan Gasevic, Jiangshan Yu, Joseph K. Liu","doi":"10.1145/3632532","DOIUrl":"https://doi.org/10.1145/3632532","url":null,"abstract":"Recent years have witnessed a marked increase in both academic proposals and industrial adoptions of blockchain technology. However, a majority of the projects remain at the stage of prototype proposals and their real-world deployment has not met the anticipated level. This gap can be attributed to three major barriers - technical difficulties, human factors, and social context. Most of the existing research leans towards addressing the technical challenges, leaving the human and social aspects inadequately explored. Moreover, a lack of practical insights in the existing blockchain software engineering frameworks further exacerbates the adoption problem. To address these gaps, we introduce a Blockchain-oriented Software Engineering Approach for Higher Adoption Possibility (BOSE-HAP) . This approach emphasizes collaboration, reflective thinking, and iterative development, aiming to bolster implementation consistency and stimulate industry adoption. We have applied this approach in the design, development, and launch of a blockchain credentialing product, CValid.org , in the context of a university-level summer school. The product achieves industry-accepted System Usability Score and has seen successful real-world deployment. In addition, this study embed usability considerations throughout the process, involved a total of 112 stakeholders across different development stages, with 25 of them participating in our in-depth interviews and usability testing. Drawing from our firsthand experience and industrial-grounded findings, we deliver 8 reflections and propose 5 best practice suggestions relevant to blockchain adoption. We believe these insights will provide invaluable guidance for both academic researchers and industry practitioners involved in the field of blockchain technology.","PeriodicalId":470442,"journal":{"name":"Distributed Ledger Technologies Research and Practice","volume":"15 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135042741","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

Smart Contracts for Mobile Network Operator Bandwidth Sharing 移动网络运营商带宽共享的智能合约

Distributed Ledger Technologies Research and Practice Pub Date : 2023-11-09 DOI: 10.1145/3630168

Thomas Sandholm, Sayandev Mukherjee

引用次数: 0

Subnetworks in BlockDAG BlockDAG 中的子网

Distributed Ledger Technologies Research and Practice Pub Date : 2023-10-17 DOI: 10.1145/3627540

Oleksandr Antonenko, Sergii Grybniak, Denis Guzey, Oleksandr Nashyvan, Ruslan Shanin

引用次数: 0

Improving Blockchain Scalability with the Setchain Data-type 使用Setchain数据类型提高区块链的可扩展性

Distributed Ledger Technologies Research and Practice Pub Date : 2023-10-13 DOI: 10.1145/3626963

Margarita Capretto, Martín Ceresa, Antonio Fernández Anta, Antonio Russo, César Sánchez

{"title":"Improving Blockchain Scalability with the Setchain Data-type","authors":"Margarita Capretto, Martín Ceresa, Antonio Fernández Anta, Antonio Russo, César Sánchez","doi":"10.1145/3626963","DOIUrl":"https://doi.org/10.1145/3626963","url":null,"abstract":"Blockchain technologies are facing a scalability challenge, which must be overcome to guarantee a wider adoption of the technology. This scalability issue is due to the use of consensus algorithms to guarantee the total order of the chain of blocks (and of the transactions within each block). However, total order is often not fully necessary, since important advanced applications of smart-contracts do not require a total order among all operations. A much higher scalability can potentially be achieved if a more relaxed order (instead of a total order) can be exploited. In this paper, we propose a novel distributed concurrent data type, Setchain , which significantly improves scalability. A Setchain implements a grow-only set whose elements are not ordered, unlike conventional blockchain operations. When convenient, the Setchain allows forcing a synchronization barrier that assigns permanently an epoch number to a subset of the latest elements added, agreed by consensus. Therefore, two operations in the same epoch are not ordered, while two operations in different epochs are ordered by their respective epoch number. We present different Byzantine-tolerant implementations of Setchain, prove their correctness and report on an empirical evaluation of a prototype implementation. Our results show that Setchain is orders of magnitude faster than consensus-based ledgers, since it implements grow-only sets with epoch synchronization instead of total order. Since the Setchain barriers can be synchronized with the underlying blockchain, Setchain objects can be used as a sidechain to implement many decentralized solutions with much faster operations than direct implementations on top of blockchains. Finally, we also present an algorithm that encompasses into a single process the combined behavior of the Byzantine servers, which simplifies correctness proofs by encoding the general attacker in a concrete implementation.","PeriodicalId":470442,"journal":{"name":"Distributed Ledger Technologies Research and Practice","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135856273","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

Authenticated Range Querying of Historical Blockchain Healthcare Data using Authenticated Multi-Version Index 使用认证多版本索引查询历史区块链医疗数据的认证范围

Distributed Ledger Technologies Research and Practice Pub Date : 2023-10-06 DOI: 10.1145/3624575

Shlomi Linoy, Suprio Ray, Natalia Stakhanova, Erik Scheme

{"title":"Authenticated Range Querying of Historical Blockchain Healthcare Data using Authenticated Multi-Version Index","authors":"Shlomi Linoy, Suprio Ray, Natalia Stakhanova, Erik Scheme","doi":"10.1145/3624575","DOIUrl":"https://doi.org/10.1145/3624575","url":null,"abstract":"With growing adoption of blockchain in established and emerging applications, there is an increasing need to support efficient ad hoc querying of authenticated historical data. This is especially true in fields such as healthcare to meet the rigorous security and regulatory requirements of ever-expanding digital health platforms. Existing blockchain systems, however, offer little or no support for querying capabilities over historical data. Although a full blockchain archive node can be used to maintain historical records of all executed transactions on the chain, it is not scalable when dealing with large volumes of data. Moreover, such ‘offline’ historical data lack tamper evidence support. To address these issues, we introduce an authenticated index structure called Authenticated Multi-Version Skip List (AMVSL), designed to support a rich set of query features over historical blockchain data. We further present three range queries: SVRK, MVRK and MVAK, which offer querying over a range of keys and a range of versions. Our experimental evaluation of two healthcare-inspired examples demonstrates that AMVSL efficiently supports these queries and can achieve performance that is several orders of magnitude faster than existing authenticated data structures.","PeriodicalId":470442,"journal":{"name":"Distributed Ledger Technologies Research and Practice","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347472","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

Accelerating Blockchain Applications on IoT Architecture Models - Solutions and Drawbacks 加速区块链在物联网架构模型上的应用——解决方案和缺点

Distributed Ledger Technologies Research and Practice Pub Date : 2023-09-29 DOI: 10.1145/3626200

Roland Kromes, François Verdier

引用次数: 0

VOTING IN DAOs dao中的投票

Distributed Ledger Technologies Research and Practice Pub Date : 2023-09-20 DOI: 10.1145/3624574

Nicola Dimitri

引用次数: 0

Reality-based UTXO Ledger 基于现实的UTXO分类帐

Distributed Ledger Technologies Research and Practice Pub Date : 2023-09-18 DOI: 10.1145/3616022

Sebastian Müller, Andreas Penzkofer, Nikita Polyanskii, Jonas Theis, William Sanders, Hans Moog

引用次数: 0

ElectAnon: A Blockchain-based, Anonymous, Robust, and Scalable Ranked-choice Voting Protocol ElectAnon:一个基于区块链的、匿名的、健壮的、可扩展的排序选择投票协议

Distributed Ledger Technologies Research and Practice Pub Date : 2023-09-18 DOI: 10.1145/3598302

Ceyhun Onur, Arda Yurdakul

{"title":"ElectAnon: A Blockchain-based, Anonymous, Robust, and Scalable Ranked-choice Voting Protocol","authors":"Ceyhun Onur, Arda Yurdakul","doi":"10.1145/3598302","DOIUrl":"https://doi.org/10.1145/3598302","url":null,"abstract":"Remote voting has become more critical in recent years, especially since the COVID-19 outbreak. Blockchain technology and its benefits such as decentralization, security, and transparency have given rise to proposals for blockchain-based voting systems. However, the traceability of blockchain transactions violates voter anonymity in existing proposals. Besides, transaction costs also need to be considered. Solutions that may cause repeated elections should be avoided for a low-cost scalable voting system. In this work, we propose ElectAnon, a blockchain-based, self-tallying, and ranked-choice voting protocol focusing on anonymity, robustness, and scalability. ElectAnon achieves anonymity by enabling voters to register with identity commitments and cast their votes via zero-knowledge proofs. Robustness is realized by removing the direct control of the authorities in the voting process by using timed-state machines. Each voter encodes the ballot into a single integer and blinds the vote off-chain while making the verification on-chain. This makes the protocol infinitely scalable in the number of voters. ElectAnon is also a solution for governance in Decentralized Autonomous Organizations (DAO): It includes a candidate proposal module and an algorithm-agnostic mechanism to plug-in different tallying methods easily. The Merkle forest extension is proposed for conducting even more trustless elections. ElectAnon is implemented with smart contracts based on Ethereum Virtual Machine (EVM) and a zero-knowledge gadget, Semaphore. The implementation also includes two different sophisticated tallying methods, Borda Count and Tideman. Experimental results show that a 40-voter and 10-candidate election can be implemented with the gas consumption reduced up to 89% compared to previous works. While other studies could not exceed a 25,000-voter setup, ElectAnon has been observed to run safely for 1,000,000 voters. The implementation can be found at https://github.com/ceyonur/electanon .","PeriodicalId":470442,"journal":{"name":"Distributed Ledger Technologies Research and Practice","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135109329","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

Smart Proofs via Recursive Information Gathering: Decentralized Refereeing by Smart Contracts 通过递归信息收集的智能证明:智能合约的去中心化裁判

Distributed Ledger Technologies Research and Practice Pub Date : 2023-05-17 DOI: 10.1145/3595298

Sylvain Carré, Franck Gabriel, Clément Hongler, Gustavo Lacerda, Gloria Capano

引用次数: 0