Vitalik Buterin, co-founder of Ethereum, wrote that airdrops are an interesting initial use case for verifying zero-knowledge proofs (ZK), blockchain identities, credentials, and proof frameworks. He pointed out that the goals of airdrops include: distributing to random users who are members of the community rather than immediately selling, rewarding project contributors, maintaining relative fairness (allowing for some degree of difference), and defending against malicious extractive arbitrage....