Vitalik Buterin outlines roadmap for native Ethereum privacy features

Ethereum co-founder Vitalik Buterin has detailed a new technical roadmap aimed at bringing native privacy features to the blockchain network. The plan, outlined in a post on Wednesday, focuses on three near-term initiatives designed to make private transactions a core part of the protocol rather than relying on external tools.

The proposals target key privacy vulnerabilities: transaction censorship, on-chain activity tracking, and data leakage during routine blockchain queries. The first initiative combines account abstraction with a mechanism called FOCIL, or fork-choice enforced inclusion lists. This is intended to make it harder for block builders to censor transactions from privacy protocols by allowing validator committees to mandate the inclusion of specific transactions in new blocks.

The second initiative addresses transaction linking through a change to "keyed nonces." Currently, each Ethereum account uses a single, sequential transaction counter, which allows observers to link different actions to the same address. The new system would replace this with a structure of a nonce key and nonce sequence, creating independent transaction counters for different activities and...