Fork Rate-Based Analysis of the Longest Chain Growth Time Interval of a PoW Blockchain

Aoki, Yasukazu; Koshizuka, Noboru; Seike, Hirotsugu

doi:10.1109/blockchain.2019.00040

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…A fork occurs when a linear blockchain ledger is split into two or more blockchain networks, forks occur for many reasons, such as adding new fu changing rule sets, addressing security risks, and resolving disagreements community on two blocks of the same height as Bitcoin and Ethereum [25,26 occurs because of the blockchain consensus mechanism, such as in Bitcoin, whe blocks are pointing to a similar, previous block and are created and broadcast neously to the network, and then a fork appears in the blockchain network. The next block is created after the fork resolves the issue because it will point to one of the two blocks as the previous block in its block, such that block D points to block C. Most of the blockchains follow the longest chain rule [27] in the network. The longest chain is the one that has maximum details of the events that occur in the network.…”

Section: Forkmentioning

confidence: 99%

Sea Shield: A Blockchain Technology Consensus to Improve Proof-of-Stake-Based Consensus Blockchain Safety

Naz,

Lee

2024

Mathematics

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In a blockchain network, a rule set called consensus mechanism is used to create and finalize a block. In a proof-of-stake (PoS), consensus-based blockchain network, nodes become validators, minters, or stakeholders’ nodes to complete the consensus mechanism. In these networks, when a node becomes a validator node, its details need to be saved because the details of the validators are used in the network for many important decisions, such as selecting block proposers for the consensus process. In this paper, we present Sea Shield, which uses a validator chain to save a node’s information when it becomes a validator or leaves its responsibility as a validator in the PoS-based blockchain network. The validator chain is a blockchain that can run with the main chain of a PoS-based blockchain. The internal features of the validator chain are similar to those of the blockchain. We designed and simulated a consensus mechanism to create and finalize the block for the validator chain with no forks. We present a process by which a node may join or unjoin as a validator in a PoS-based blockchain network to improve the overall security of the main chain-consensus process.

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Section: Forkmentioning

confidence: 99%

Sea Shield: A Blockchain Technology Consensus to Improve Proof-of-Stake-Based Consensus Blockchain Safety

Naz,

Lee

2024

Mathematics

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“…They assumed that the block-generation time follows a Poisson process, deriving the probability of blockchain fork occurrence. A further refined model for the fork probability was proposed in [19].…”

Section: Related Work For Performance Modeling Of Blockchainmentioning

confidence: 99%

Performance Modeling of Bitcoin Blockchain: Mining Mechanism and Transaction-Confirmation Process

Kasahara

2021

IEICE Trans. Commun.

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Bitcoin is one of popular cryptocurrencies widely used over the world, and its blockchain technology has attracted considerable attention. In Bitcoin system, it has been reported that transactions are prioritized according to transaction fees, and that transactions with high priorities are likely to be confirmed faster than those with low priorities. In this paper, we consider performance modeling of Bitcoin-blockchain system in order to characterize the transaction-confirmation time. We first introduce the Bitcoin system, focusing on proof-of-work, the consensus mechanism of Bitcoin blockchain. Then, we show some queueing models and its analytical results, discussing the implications and insights obtained from the queueing models.

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“…Public blockchains use decentralized approaches, such as Bitcoin blockchain nodes participating in transactions by the PoW [3,4] consensus, jointly maintaining the integrity of the public blockchain and the persistence of transactions, ensuring the credibility and traceability of data. Commonly used consensus strategies include POS [4,5], DPOS [6], Casper [7,8,9], etc.…”

Section: Introductionmentioning

confidence: 99%

A Survey on Cross-Chain Technology: Challenges, Development, and Prospect

et al. 2023

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With the continuous development of blockchain technology, many blockchain applications, such as digital currencies in the form of tokens, are deployed. However, due to the lack of data and value inter-blockchain transmission methods, these chain applications form many data islands. Therefore, crosschain technology is proposed and applied in distributed transaction platforms, digital finance, e-government and many other different fields. Although cross-chain technology just started, the cross-chain technology and its applications are gradually improving to meet the development needs of blockchain system. At the same time, they have already realized asset transfers across heterogeneous blockchains and platforms, and some projects have realized cross-chain information exchange. At present, cross-chain technology includes the following typical methods: Hash-locking, Notary scheme, Distributed private key control, Sidechains/Relays and Tight coupling. This paper analyzes the above methods from the aspect of techniques, security requirements, and technical limitation, and compares their applicability. With public blockchains and consortium blockchains, this paper analyzes their problems and challenges in cross-chain technology and introduces the main approaches of existing solutions. By analyzing the existing cross-chain technologies and problems, this paper further introduces eight popular cross-chain projects and their application prospects. Finally, this paper summarizes and proposes the future research topics and development trends of cross-chain technology.

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Fork Rate-Based Analysis of the Longest Chain Growth Time Interval of a PoW Blockchain

Cited by 8 publications

References 8 publications

Sea Shield: A Blockchain Technology Consensus to Improve Proof-of-Stake-Based Consensus Blockchain Safety

Sea Shield: A Blockchain Technology Consensus to Improve Proof-of-Stake-Based Consensus Blockchain Safety

Performance Modeling of Bitcoin Blockchain: Mining Mechanism and Transaction-Confirmation Process

A Survey on Cross-Chain Technology: Challenges, Development, and Prospect

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