Farting Unicorn

FUNIisa10,000supplyassetonRobinhoodChain(chainID4663)thatexistsasanERC-20tokenandanERC-721collectionatthesametime.Everywholetokeninawalletcarriesauniqueunicorn.BuythetokenonadecentralisedexchangeandtheNFTappearsinthewalletinthesame transaction.Sellitandthetokengoesback.Thisisimplementedinsidethetoken'sowntransferfunctionundertheDN404standard,sothecollectionfollowsthecoinacrosseveryvenuethatcanmoveit,whetherapool,arouteroradirectwallettransfer,withnointegrationrequiredbythatvenueandnowaytobypassit.Theresultisasingleassetwithtwomarkets:tradableonadecentralisedexchangeasatoken,oronanNFTmarketplaceasanNFT,withnowrapping,nobridgingandnomigrationstepineitherdirection.Supplyisfixedat10,000with18decimalsandthecontracthasnomintfunction.Thereisnominttransactionandnoseparatemintinginterface,becauseunicornsarecreatedanddestroyedonlyasabyproductofordinarytokentransfers.