CoinPrune: Shrinking Bitcoin’s Blockchain Retrospectively

Matzutt, Roman; Kalde, Benedikt; Pennekamp, Jan; Drichel, Arthur; Henze, Martin; Wehrle, Klaus

doi:10.1109/tnsm.2021.3073270

Cited by 16 publications

(13 citation statements)

References 43 publications

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“…Soharab Hossain Sohan et al [147] proposed a distributed storage system IPFS is used to bypass the storing liabilities and to increase throughput. Roman Matzutt et al [148] developed a scheme named Coin-Prune to prune old-blocks.…”

Section: ) Possible Solutionsmentioning

confidence: 99%

Survey on Blockchain-Based IoT Payment and Marketplaces

2022

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The ever-growing smart applications will expand the Internet of Things (IoT) ecosystem to connect over 75 billion devices by 2025. IoT ecosystems comprise sensors that act as data suppliers and applications where monetary transactions are required to compensate the data producers. This signifies the importance of IoT payments and marketplaces to facilitate micro-transactions of billions of connected devices in the IoT ecosystem, which is heterogeneous, decentralized, and diverse. However, realizing such an ecosystem raises multiple challenges such as overcoming poor inter-operability, resource constraints, and security and privacy vulnerabilities of IoT devices and platforms. Blockchain is a Distributed Ledger Technology (DLT) that can be identified as a potential solution to overcome the challenges in realizing IoT payments and marketplaces. This is due to the characteristics of blockchain such as decentralization, traceability, immutability, and non-repudiation. This paper presents a comprehensive survey on blockchainbased IoT payments and marketplaces. This paper provides a brief introduction to the concepts of IoT payments and IoT marketplaces. Then the technical challenges involved in realizing IoT payment and marketplaces are discussed by highlighting the blockchain-based solutions. Furthermore, blockchain-based smart applications which use IoT marketplace and IoT payment concepts are presented marking the role of blockchain in each of the application. Subsequently, the paper discussed the integration challenges while also highlighting possible solutions. It is envisaged that this paper would shed light on the development of blockchain-based solutions to realize IoT payments and marketplaces.

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Section: ) Possible Solutionsmentioning

confidence: 99%

Survey on Blockchain-Based IoT Payment and Marketplaces

2022

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“…Another scalability issue is the ever-increasing storage requirement to operate blockchains [13,72]. This problem is aggravated in the context of supply chains once suppliers are required to tie their process data to the blockchain.…”

Section: Scalabilitymentioning

confidence: 99%

“…This problem is aggravated in the context of supply chains once suppliers are required to tie their process data to the blockchain. Pruning strategies have been proposed to unburden blockchain nodes from storing historic data that has become obsolete [72,73]. However, applications relying on blockchain-extrinsic data cannot immediately seize this potential since what constitutes obsolete data has to be defined on a per-application basis.…”

Section: Scalabilitymentioning

confidence: 99%

“…However, a proper integration of these advances into a full blockchain-based architecture is mandatory to seize this potential for efficient data management and to not undermine any requirements of the overall system. The redundant execution of various tasks, such as verifying digital signatures or maintaining a local state, has become the main bottleneck of traditional blockchains [72]. Solutions, such as sidechains or sharding, that distribute the workload without lowering security guarantees will help to reduce the operating costs [66,78].…”

Section: Efficiencymentioning

confidence: 99%

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The Road to Accountable and Dependable Manufacturing

et al. 2021

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The Internet of Things provides manufacturing with rich data for increased automation. Beyond company-internal data exploitation, the sharing of product and manufacturing process data along and across supply chains enables more efficient production flows and product lifecycle management. Even more, data-based automation facilitates short-lived ad hoc collaborations, realizing highly dynamic business relationships for sustainable exploitation of production resources and capacities. However, the sharing and use of business data across manufacturers and with end customers add requirements on data accountability, verifiability, and reliability and needs to consider security and privacy demands. While research has already identified blockchain technology as a key technology to address these challenges, current solutions mainly evolve around logistics or focus on established business relationships instead of automated but highly dynamic collaborations that cannot draw upon long-term trust relationships. We identify three open research areas on the road to such a truly accountable and dependable manufacturing enabled by blockchain technology: blockchain-inherent challenges, scenario-driven challenges, and socio-economic challenges. Especially tackling the scenario-driven challenges, we discuss requirements and options for realizing a blockchain-based trustworthy information store and outline its use for automation to achieve a reliable sharing of product information, efficient and dependable collaboration, and dynamic distributed markets without requiring established long-term trust.

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“…It is proposed based on a snapshot technique by Matzutt et al in 2020 37 . CoinPrune also aims at reducing blockchain size to optimize the storage and bandwidth requirements.…”

Section: Redactable Blockchain Mechanismsmentioning

confidence: 99%

Exploring the redaction mechanisms of mutable blockchains: A comprehensive survey

Zhang

Lei

et al. 2021

Int J of Intelligent Sys

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Blockchain technology has attracted tremendous interest from both industry and academia. It is typically used to record a public history of transactions (e.g., payment/smart contract data), but storing nonpayment/contract data in transactions has been common. The ability to store data unrelated to payment/contract such as illicit data on blockchain may be abused for malicious purposes. For example, one may use blockchain to store the data related to child pornography and copyright violations, which are publicly visible and immutable. Moreover, an immutable blockchain is not suitable for all blockchain‐based applications. So far, numerous redaction mechanisms for the mutable blockchain have been developed. In this paper, we aim at conducting a comprehensive survey that reviews and analyzes the state‐of‐the‐art redaction mechanisms. We start by giving a general presentation of blockchain and summarize the typical methods of inserting data in blockchain. Next, we discuss the challenges of designing the redaction mechanism and propose a list of evaluation criteria. Then, redaction mechanisms of the existing mutable blockchains are systemically reviewed and analyzed based on our evaluation criteria. The analyses include algorithmic overviews, performance limitations, and security vulnerabilities. Finally, the comparisons and analyses provide new insights into these mechanisms. This survey will provide developers and researchers a comprehensive view and facilitate the design of future mutable blockchains.

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CoinPrune: Shrinking Bitcoin’s Blockchain Retrospectively

Cited by 16 publications

References 43 publications

Survey on Blockchain-Based IoT Payment and Marketplaces

Survey on Blockchain-Based IoT Payment and Marketplaces

The Road to Accountable and Dependable Manufacturing

Exploring the redaction mechanisms of mutable blockchains: A comprehensive survey

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