This One is Good For $ADA
According to dcSpark co-founder Sebastien Guillemot, the very first ZK (zero-knowledge) smart contract has been deployed on the Cardano mainnet.
This marks the start of the era of ZK applications on the popular blockchain network.
The transaction was performed by #Cardano developer Input Output with the help of Halo 2 for ZK verification on the blockchain's mainnet.