Blockchain Foundations

From Open Ledgers to Hidden Transactions: Blockchain’s Privacy Challenge

From Open Ledgers to Hidden Transactions: Blockchain’s Privacy Challenge

Abstract Blockchain, first introduced by Bitcoin, aimed to create a decentralized, transparent, and immutable ledger that builds trust without needing middlemen. However, its pseudonymity exposes transaction histories when addresses are linked to real-world identities, driving the adoption of privacy-enhancing technologies (PETs) like Zero-Knowledge Proofs (ZKPs), cryptocurrency mixers, and privacy coins
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