Adding verifiably deterministic signatures to your existing Ethereum keys will make it possible to have a unique, anonymous identity. Developing this cryptographic primitive, or PLUMEs, into wallets, will unlock sybil-resistant anonymous apps like zk nullifiers for anonymous unlinked airdrops, anonymous decentralized voting which only allows one vote per account, anonymous proof of solvency, and message boards with a consistent identity. We think that creating well maintained packages and libraries for wallets to make these signatures will create a whole new class of dapps and web3 social apps with pseudonymity.