Agnieszka Kurant (b. 1978), Sentimentite #20: Birth of Web3, MasterCoin protocol layer, 2022. Expanded NFT: ERC-721 (NFT) + redeemable as mixed material sculpture (3D print cast in Sentimentite). All 100 Sentimentite physical sculptures can be produced at 25cm diameter size. Only 10 can be cast at 50cm diameter, available on a first-come, first-served basis. Owner can redeem the counterpart physical sculpture on zien.io.