Decentralization in Bitcoin and Ethereum Networks

@inproceedings{Gencer2018DecentralizationIB,
  title={Decentralization in Bitcoin and Ethereum Networks},
  author={Adem Efe Gencer and Soumya Sankar Basu and Ittay Eyal and Robbert van Renesse and Emin G{\"u}n Sirer},
  booktitle={Financial Cryptography},
  year={2018}
}
Blockchain-based cryptocurrencies have demonstrated how to securely implement traditionally centralized systems, such as currencies, in a decentralized fashion. [] Key Method In particular, we adapted existing internet measurement techniques and used the Falcon Relay Network as a novel measurement tool to obtain our data. We discovered that neither Bitcoin nor Ethereum has strictly better properties than the other. We also provide concrete suggestions for improving both systems.

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References

SHOWING 1-10 OF 57 REFERENCES

Bitcoin-NG: A Scalable Blockchain Protocol

This paper implements Bitcoin-NG, a new blockchain protocol designed to scale, which is Byzantine fault tolerant, is robust to extreme churn, and shares the same trust model obviating qualitative changes to the ecosystem.

Information propagation in the Bitcoin network

This paper analyzes how Bitcoin uses a multi-hop broadcast to propagate transactions and blocks through the network to update the ledger replicas, and verifies the conjecture that the propagation delay in the network is the primary cause for blockchain forks.

Blockchain inefficiency in the Bitcoin peers network

Investigating Bitcoin network observing transactions broadcasted into the network during a week from 04/05/2016 and then monitoring their inclusion into the blockchain during the following seven months reveals a great inefficiency in the Bitcoin system.

ETHEREUM: A SECURE DECENTRALISED GENERALISED TRANSACTION LEDGER

The blockchain paradigm when coupled with cryptographically-secured transactions has demonstrated its utility through a number of projects, with Bitcoin being one of the most notable ones, and Ethereum implements this paradigm in a generalised manner.

On Scaling Decentralized Blockchains - (A Position Paper)

The results suggest that reparameterization of block size and intervals should be viewed only as a first increment toward achieving next-generation, high-load blockchain protocols, and major advances will additionally require a basic rethinking of technical approaches.

The Bitcoin P2P Network

Measurements of the P2P network can be considered as a lower bound for Bitcoin usage, and they provide interesting results on the adoption of such virtual currency.

Hijacking Bitcoin: Large-scale Network Attacks on Cryptocurrencies

It is shown that attacks that are commonly believed to be hard are actually within the reach of anyone with access to a BGP-enabled network and hijacking less than 900 prefixes, and several suggestions on approaches to mitigate such attacks employing both short-term and long-term measures are provided.

Secure High-Rate Transaction Processing in Bitcoin

The GHOST rule is addressed, a modification to the way Bitcoin nodes construct and re-organize the block chain, Bitcoin’s core distributed data-structure, to address security concerns over high transaction throughput.

On the Security and Performance of Proof of Work Blockchains

This paper introduces a novel quantitative framework to analyse the security and performance implications of various consensus and network parameters of PoW blockchains and devise optimal adversarial strategies for double-spending and selfish mining while taking into account real world constraints.
...