15 citations · 17 across the 3 of their papers we have counts for
4 papers · 1 filter
Pricing Security in Proof-of-Work Systems
George Bissias, Rainer Böhme, David Thibodeau +1
A key component of security in decentralized blockchains is proof of opportunity cost among block producers. In the case of proof-of-work (PoW), currently used by the most prominen…
Bonded Mining: Difficulty Adjustment by Miner Commitment
George Bissias, David Thibodeau, Brian N. Levine
Proof-of-work blockchains must implement a difficulty adjustment algorithm (DAA) in order to maintain a consistent inter-arrival time between blocks. Conventional DAAs are essentia…
Using Economic Risk to Model Miner Hash Rate Allocation in Cryptocurrencies
George Bissias, Brian N. Levine, David Thibodeau
Abrupt changes in the miner hash rate applied to a proof-of-work (PoW) blockchain can adversely affect user experience and security. Because different PoW blockchains often share h…
Estimation of Miner Hash Rates and Consensus on Blockchains (draft)
A. Pinar Ozisik, George Bissias, Brian Levine
We make several contributions that quantify the real-time hash rate and therefore the consensus of a blockchain. We show that by using only the hash value of blocks, we can estimat…