Erasing Data from Blockchain Nodes

  title={Erasing Data from Blockchain Nodes},
  author={M. Florian and Sophie Beaucamp and Sebastian A. Henningsen and B. Scheuermann},
  journal={2019 IEEE European Symposium on Security and Privacy Workshops (EuroS&PW)},
  • M. Florian, Sophie Beaucamp, +1 author B. Scheuermann
  • Published 2019
  • Computer Science
  • 2019 IEEE European Symposium on Security and Privacy Workshops (EuroS&PW)
  • It is a common narrative that blockchains are immutable and so it is technically impossible to erase data stored on them. [...] Key Method We describe a general FPLE approach for UTXO-based (i.e., Bitcoin-like) cryptocurrencies and present a lightweight proof-of-concept tool for safely erasing transaction data from the local storage of Bitcoin Core nodes. Erasing nodes continue to operate in tune with the network even when erased transaction outputs become relevant for validating subsequent blocks. Using only…Expand Abstract
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