[{"type":"report","id":"BLC-STUDY-0415","title":"EIP-721 Consumable Extension","author":[{"literal":"Daniel Ivanov"},{"literal":"George Spasov"}],"issued":{"date-parts":[[2021]]},"publisher":"Daniel Ivanov , George Spasov","URL":"https://eips.ethereum.org/EIPS/eip-4400","note":"Rights status: Official external source only. Not a licence to republish the paper."}]