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      Towards Better Understanding of Bitcoin Unreachable Peers

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          Abstract

          The bitcoin peer-to-peer network has drawn significant attention from researchers, but so far has mostly focused on publicly visible portions of the network, i.e., publicly reachable peers. This mostly ignores the hidden parts of the network: unreachable Bitcoin peers behind NATs and firewalls. In this paper, we characterize Bitcoin peers that might be behind NATs or firewalls from different perspectives. Using a special-purpose measurement tool we conduct a large scale measurement study of the Bitcoin network, and discover several previously unreported usage patterns: a small number of peers are involved in the propagation of 89% of all bitcoin transactions, public cloud services are being used for Bitcoin network probing and crawling, a large amount of transactions are generated from only two mobile applications. We also empirically evaluate a method that uses timing information to re-identify the peer that created a transaction against unreachable peers. We find this method very accurate for peers that use the latest version of the Bitcoin Core client.

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          An Analysis of Anonymity in Bitcoin Using P2P Network Traffic

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            Timing Analysis for Inferring the Topology of the Bitcoin Peer-to-Peer Network

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              A simulation model for analysis of attacks on the Bitcoin peer-to-peer network

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                Author and article information

                Journal
                20 September 2017
                Article
                1709.06837
                7442f4b1-39d5-4c0e-bd37-4e4ebd9188eb

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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                7 pages, 10 figures, 8 tables
                cs.NI

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