| gptkbp:instanceOf | gptkb:ERC-20_token 
 | 
                        
                            
                                | gptkbp:allows | metadata association approval for transfer
 ownership transfer
 unique digital asset creation
 
 | 
                        
                            
                                | gptkbp:approvalFunction | approve setApprovalForAll
 
 | 
                        
                            
                                | gptkbp:blockchain | gptkb:Ethereum 
 | 
                        
                            
                                | gptkbp:category | gptkb:market Blockchain protocol
 Token standard
 
 | 
                        
                            
                                | gptkbp:defines | Non-fungible tokens 
 | 
                        
                            
                                | gptkbp:EIPNumber | gptkb:EIP-721 
 | 
                        
                            
                                | gptkbp:enables | NFT marketplaces blockchain gaming
 decentralized identity
 digital collectibles
 digital art ownership
 real-world asset tokenization
 
 | 
                        
                            
                                | gptkbp:event | Transfer Approval
 ApprovalForAll
 
 | 
                        
                            
                                | gptkbp:governedBy | Ethereum Improvement Proposal process 
 | 
                        
                            
                                | gptkbp:interface | gptkb:IERC721 gptkb:IERC721Enumerable
 gptkb:IERC721Metadata
 
 | 
                        
                            
                                | gptkbp:introduced | Ethereum community 
 | 
                        
                            
                                | gptkbp:nativeToken | Non-fungible 
 | 
                        
                            
                                | gptkbp:openSource | true 
 | 
                        
                            
                                | gptkbp:primaryUse | NFTs 
 | 
                        
                            
                                | gptkbp:proposedBy | gptkb:Dieter_Shirley gptkb:Jacob_Evans
 gptkb:Nastassia_Sachs
 gptkb:William_Entriken
 721
 
 | 
                        
                            
                                | gptkbp:publishedIn | 2018-01-24 
 | 
                        
                            
                                | gptkbp:relatedStandard | gptkb:ERC-1155_standard gptkb:ERC-20_standard
 
 | 
                        
                            
                                | gptkbp:specifies | metadata extension ownership tracking
 enumeration extension
 safe transfer methods
 unique token IDs
 
 | 
                        
                            
                                | gptkbp:standardizedBy | gptkb:Ethereum_Foundation 
 | 
                        
                            
                                | gptkbp:symbol | gptkb:ERC-721 
 | 
                        
                            
                                | gptkbp:transferFunction | transferFrom safeTransferFrom
 
 | 
                        
                            
                                | gptkbp:usedBy | gptkb:Axie_Infinity gptkb:Decentraland
 gptkb:CryptoKitties
 
 | 
                        
                            
                                | gptkbp:website | https://eips.ethereum.org/EIPS/eip-721 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:William_Entriken 
 | 
                        
                            
                                | gptkbp:bfsLayer | 7 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | ERC-721 standard 
 |