Global ETD Search
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Showing 1 to 20 of 51 for “"Blockchains"”.
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Blockchains For Publicizing Available Scientific Datasets
… available datasets to interested parties. Blockchains are a recent innovation developed by the cryptocurrency community, but are increasingly applied to other problem domains. Due to their currency heritage, however, the properties of blockchains do not always lend themselves to new …
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Security for proof of work blockchains via checkpointing
… and are proposed for deployment in many major blockchains. While the finality gadget architecture has been explored through many distinct dimensions, their performance under an adversarial majority in the PoW chain protocol has received scant attention. The raison d’etre for a finality gadget …
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ThermoEquil: a secure protocol for committee-based permissionless blockchains
… and scalability limitations is to make hybrid blockchains by combining proofof work with other decentralized systems. The committee-based protocol is proposed to split the overheadsof processing transactions among multiple, smaller groups of nodes to work in parallel to maximizeperformance. …
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On the information theory of clustering, registration, and blockchains
Progress in data science depends on the collection and storage of large volumes of reliable data, efficient and consistent inference based on this data, and trusting such computations made by untrusted peers. Information theory provides the means to analyze statistical inference algorithms, …
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Enhancing Performance in Programmable 5G Networks, Blockchains, and Cloud Gaming
L'abstract è presente nell'allegato / the abstract is in the attachment
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FSCBlock: Designing financial smart contracts on permissioned and public blockchains
Blockchain technology, though still at its infancy, is disrupting current business models by making intermediary services obsolete and the term has become a buzzword worldwide. A lot of research is going on to harness its full potential in many fronts from small to large corporate businesses. …
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Trust Machines: Cryptocurrencies, Blockchains, and Humans in Cultures of Mistrust
Network technologies allow individuals to participate in technological market systems that can mediate trust independently from traditional public institutions. This presents a novel idea of governance that is distinct to the one in liberal democracies. I explore the use of cryptocurrencies …
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Using Public and Private Blockchains for Secure Data Sharing and Analytics
… by incen- tivizing honest behavior by using Blockchains and Trusted Hardware. First, we present an alternative for tracking, managing and especially adjudicating data sharing agreements using smart contracts and blockchain technology. Next, we show how to leverage both public and private …
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A full-stack study of blockchains on security, performance, and incentive
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Barracuda: The power of l-polling in proof of stake blockchains
Blockchain is a database of storing sequential events as a chain of blocks consistently across a distributed set of nodes. A fundamental problem in doing so is to decide where to put the next block and who should do it in a Sybil-resistant manner. To solve this problem, typically, a node is elected …
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Formal Proofs of Security for Privacy-Preserving Blockchains and other Cryptographic Protocols
Cryptography is used to protect data and communications. The basic tools are cryptographic primitives, whose security and efficiency are widely studied. But in real-life applications these primitives are not used individually, but combined inside complex protocols. The aim of this thesis is to …
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Informacijos saugumo užtikrinimo metodų tyrimas Block chain pagalba /
Blockchains created a method to save data in the network where each node has identical state witout using central authority to it. Such trustless systems do not have a signle point of failure, which makes them more robust against hacking or a influence from a single party, they are harder to shut …
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The lightning network cross-chain exchange : a decentralized approach for peer to peer exchange across blockchain
… opportunity in untrusted systems. As more blockchains were created, however, a lack of interoperability became apparent. In response, centralized exchanges facilitating transactions across different blockchains emerged, reintroducing trusted third parties that blockchains were in part …
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PUBLIC BLOCKCHAIN SCALABILITY: ADVANCEMENTS, CHALLENGES AND THE FUTURE
… software architecture and technology. Ideally, blockchains are designed to be architecturally and politically decentralized, similar to the Internet. But recently, public and permissionless blockchains such as Bitcoin and Ethereum have faced stumbling blocks in the form of scalability. Both …
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Impact of Blockchain technology on US financial inclusion
… Second, I provide a framework for reviewing blockchains. Lastly, I take an in-depth look at the economics of offering checking accounts, and identify approaches for how blockchains will redefine the value chain in financial services. Blockchain technology brings new avenues for companies …
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Reinforcement Learning assisted Adaptive difficulty of Proof of Work (PoW) in Blockchain-enabled Federated Learning
… in the context of consortium and private blockchains. The motivation stems from ensuring fairness and efficiency in blockchain technology's Proof of Work (PoW) consensus mechanism. Existing consensus algorithms, such as PoW, PoS, and PoB, have succeeded in public blockchains but face …
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ON SCALABILITY OF BLOCKCHAIN TECHNOLOGIES
… we explore how to improve scalability of blockchains while maintaining their fundamental premise of decentralization. Scalable blockchains are capable of delivering a target throughput and latency in the presence of increasing workload. To this end, first we present Bitcoin-NG, a new …
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Liveness analysis, modeling, and simulation of blockchain consensus algorithms' ability to tolerate malicious miners
… technology revolution and concomitant use of blockchains in various applications have resulted in many organizations and individuals developing and customizing their own fit-for-purpose consensus algorithms. Because security and performance are principally achieved through the chosen consensus …
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Cross-chain Trading Network Using Smart Contracts
… Despite the fluctuation in the exchange rate, blockchains and its cryptocurrencies have no remarkable change overall. They still follow the old-traditional trading mechanism, which exchanges between cryptocurrencies and fiat currencies. Although few projects are emerging to enlarge a …
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