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ERC-2981 NFT Royalty Standard

FinalERCcreated 2020-09-153 later proposals build on itrequires ERC-165

Authors: Zach Burks (@vexycats), James Morgan (@jamesmorgan), Blaine Malone (@blmalone), James Seibel (@seibelj)

ERC-165 interface ids

Computed here as the XOR of the selectors each interface defines.

IERC29810x2a55205a

Functions this standard introduces (1)

0x2a55205aroyaltyInfo(uint256,uint256)view

Inherited (1)

0x01ffc9a7supportsInterface(bytes4)ERC-165

Optional extensions (1)

Interfaces the spec defines alongside the core one, which an implementation may or may not carry.

IERC1650x01ffc9a7

0x01ffc9a7supportsInterface(bytes4)

Depends on (1)

Proposals this one names in its requires field.

ERC-165Standard Interface Detection

Built on by (3)

Later proposals that name this one in their requires field.

ERC-5635NFT Licensing AgreementsERC-6105No Intermediary NFT Trading ProtocolERC-6786Registry for royalties payment for NFTs

What the specification covers

Simple SummaryAbstractMotivationSpecificationExamplesDeploying an ERC-721 and signaling support for ERC-2981Checking if the NFT being sold on your marketplace implemented royaltiesRationaleOptional royalty paymentsSimple royalty payments to a single addressRoyalty payment percentage calculationUnit-less royalty payment across all marketplaces, both on-chain and off-chainUniversal Royalty PaymentsBackwards CompatibilitySecurity ConsiderationsCopyright

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