Vitalik Buterin Advocates for Enhanced Privacy in Crypto Payments

Vitalik Buterin has published a research article on May 10, advocating for a shift in crypto payments from pseudonymity to default privacy. According to ChainCatcher, Buterin proposes replacing standard transactions with zero-knowledge proof (ZK) transactions, allowing users to validate payments without revealing their full balance or transaction history. Buterin highlights the importance of privacy in the era of autonomous AI agents, which need to pay for services like LLM API fees without leaving traceable marks. He suggests using recursive SNARKs and ZK API credits to enable Ethereum Layer 2 to handle privacy payments with the same speed and cost as transparent transactions. The proposal includes mechanisms for selective disclosure and innocence proof, allowing users to provide specific evidence to compliance agencies or tax authorities without public data exposure, addressing anti-money laundering regulatory requirements. Buterin believes that the public transparency of blockchain is a major barrier to crypto payments replacing traditional payments, and the ZK payment standard aims to make privacy a default feature.