Redactable Blockchain in the Permissionless Setting

This course aims to teach learners about redactable blockchain in the permissionless setting. The learning outcomes include understanding the challenges posed by harmful data in immutable blockchains like Bitcoin, and the proposal of an efficient redactable blockchain solution that does not rely on heavy cryptographic tools or trust assumptions. The course covers topics such as consensus-based voting, policy parameters for redactions, public verifiability, and accountability for redacted chains. The teaching method involves presenting formal security definitions, proofs, and a proof-of-concept implementation. This course is intended for individuals interested in blockchain technology, data security, and law enforcement agencies dealing with harmful data on public blockchains.