I'm not sure ZK proof alone solves this, but seems integral to Sybil resistant systems that operate on personhood/identity, as it allows you to prove your ident

I'm not sure ZK proof alone solves this, but seems integral to Sybil resistant systems that operate on personhood/identity, as it allows you to prove your identity (or that your personhood meets some criteria, like an age limit) without revealing any additional information about yourself. See [1][2]. A contrived example is an NFT drop that only allows you to claim 1 token per identity proof. [1] - https://blog.cloudflare.com/introducing-zero-knowledge-proofs-for-private-web-attestation-with-cross-multi-vendor-hardware/ https://blog.cloudflare.com/introducing-zero-knowledge-proof... [2] - https://eprint.iacr.org/2019/546 https://eprint.iacr.org/2019/546