[{"type":"report","id":"BLC-STUDY-0441","title":"Digital Receipt Non-Fungible Tokens","author":[{"literal":"Sean Darcy"}],"issued":{"date-parts":[[2022]]},"publisher":"Sean Darcy","URL":"https://eips.ethereum.org/EIPS/eip-5570","note":"Rights status: Official external source only. Not a licence to republish the paper."}]