Title
Exploring Ethereum’s Blockchain Anonymity Using Smart Contract Code Attribution
Abstract
Blockchain users are identified by addresses (public keys), which cannot be easily linked back to them without out-of-network information. This provides pseudo-anonymity, which is amplified when the user generates a new address for each transaction. Since all transaction history is visible to all users in public blockchains, finding affiliation between related addresses can hurt pseudo-anonymity. Such affiliation information can be used to discriminate against addresses that were found to be related to a specific group, or can even lead to the de-anonymization of all addresses in the associated group, if out-of-network information is available on a few addresses in that group. In this work we propose to leverage a stylometry approach on Ethereum's deployed smart contracts' bytecode and high level source code, which is publicly available by third party platforms. We explore the extent to which a deployed smart contract's source code can contribute to the affiliation of addresses. To address this, we prepare a dataset of real-world Ethereum smart contracts data, which we make publicly available; design and implement feature selection, extraction techniques, data refinement heuristics, and examine their effect on attribution accuracy. We further use these techniques to test the classification of real-world scammers data.
Year
DOI
Venue
2019
10.23919/CNSM46954.2019.9012681
2019 15th International Conference on Network and Service Management (CNSM)
Keywords
DocType
ISSN
blockchain,Ethereum,smart contracts,distributed ledger,traceability,authorship attribution
Conference
2165-9605
ISBN
Citations 
PageRank 
978-1-7281-5396-4
0
0.34
References 
Authors
13
3
Name
Order
Citations
PageRank
Shlomi Linoy112.06
Natalia Stakhanova233627.48
Alina Matyukhina300.68