Tracing fake news footprints: characterizing social media messages by how they propagate

Tracing fake news footprints: characterizing social media messages by how they propagate Wu & Liu, WSDM’18 This week we’ll be looking at some of the papers from WSDM’18. To kick things off I’ve chosen a paper tackling the problem of detecting fake news on social media. One of the challenges here is that fake news … Continue reading Tracing fake news footprints: characterizing social media messages by how they propagate

Decentralisation in Bitcoin and Ethereum networks

Decentralization in Bitcoin and Ethereum networks Gencer et al., FC’18 I thought it would be fitting to round off this week’s selections by looking at the state of Bitcoin and Ethereum in practice. Today’s paper presents the results of a series of measurements of the respective networks, taken through 2016 and 2017. Ongoing research explores … Continue reading Decentralisation in Bitcoin and Ethereum networks

SoK: Research perspectives and challenges for Bitcoin and cryptocurrency – Part II

SoK: Research perspectives and challenges for Bitcoin and cryptocurrency Bonneau et al., IEEE Security and Privacy, 2015 Part 2 : modifications, extensions, anonymity. Here’s the map for what we’ll be talking about today. We’ll discuss considerations for modifying and/or upgrading the way Bitcoin works, the world of altcoins, and uses beyond cryptocurrency. We’ll also touch … Continue reading SoK: Research perspectives and challenges for Bitcoin and cryptocurrency – Part II

SoK: Research perspective and challenges for Bitcoin and cryptocurrency – Part I

SoK: Research perspectives and challenges for Bitcoin and cryptocurrency Bonneau et al., IEEE Security and Privacy, 2015 Part 1 : core technology and the question of stability. Yesterday we took a look at consensus for blockchain-based systems. Together we’re going back in time a little further to 2015, where we find a broader survey of … Continue reading SoK: Research perspective and challenges for Bitcoin and cryptocurrency – Part I

OmniLedger: a secure, scale-out decentralized ledger via sharding

OmniLedger: A secure, scale-out, decentralized ledger via sharding Kokoris-Kogias et al., IEEE S&P 2018 OmniLedger makes a nice complement to Chainspace that we looked at yesterday. The two systems were developed independently at the same time. OmniLedger combines Visa levels of scalability (caution: the authors compare against the average Visa tps, the peak tps in … Continue reading OmniLedger: a secure, scale-out decentralized ledger via sharding