240 research outputs found
A Proof of Stake Sharding Protocol for Scalable Blockchains
Cryptocurrencies such as Bitcoin has drawn great attention recently. The public ledger blockchain serves as a secure database for cryptocurrencies. However, only 3 to 7 transactions can be processed per second, which means the blockchain does not scale. To address this problem, we propose a new consensus protocol based on sharding and proof of stake. The scalability of our proposed method is expected to increase linearly with the network size. We discuss proposed method from the scalability evaluation, complexity and security view
Necesaria regulación legal del Bitcoin en España
El Bitcoin, cuya dimensión como criptomoneda se está multiplicando desde su creación en 2009, debe ser objeto de una regulación legal urgente, a fin de evitar los problemas jurídicos que puedan derivar de su alegalidad, ya que esta realidad digital está siendo objeto de transmisión entre particulares sin una normativa específica que la regule
A Scale-out Decentralized Blockchain Ledger System for Web3.0
The development of underlying technologies in blockchain mostly revolves
around a difficult problem: how to enhance the performance of the system and
reduce various costs of nodes (such as communication, storage and verification)
without compromising the system's security and decentralization. Various
layer-1 and layer-2 protocols have provided excellent solutions for this
challenge. However, they cannot yet be considered as a ``silver bullet". This
paper proposes EZchain -- a novel decentralized ``scale-out" ledger system
designed for web3.0, aiming to enable blockchain technology to truly support
ledger applications in large-scale fully decentralized networks. Without
compromising security and decentralization, EZchain successfully accomplishes
the following milestones: 1) Scalability: The theoretical throughput of EZchain
can be infinitely expanded, nearly unaffected by bandwidth and other resource
constraints. 2) Consumer-Grade Hardware Compatibility: EZchain is designed to
be compatible with consumer-grade hardware, supporting storage, computation,
and verification requirements. 3) Efficient Transaction Confirmation: EZchain
strives to maintain transaction confirmation delays within one minute. Our
prototype experiment demonstrates that under typical daily bandwidth network
conditions, EZchain's performance in all aspects approaches that of the
accounts in centralized payment systems. This provides a solid infrastructure
for realizing mobile payments in web3.0
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