ERC-7651 Fractionally Represented Non-Fungible Token

DraftERCcreated 2024-03-05requires ERC-20, ERC-165, ERC-721

A specification for fractionally represented non-fungible tokens.

Authors: Acme (@0xacme), Calder (@caldereth)

ERC-165 interface ids

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

IERC7651 0xd5f9d30e

`0xdd62ed3e`	`allowance(address,address)`	view
`0x095ea7b3`	`approve(address,uint256)`
`0x70a08231`	`balanceOf(address)`	view
`0x313ce567`	`decimals()`	view
`0xe985e9c5`	`isApprovedForAll(address,address)`	view
`0x6352211e`	`ownerOf(uint256)`	view
`0xb88d4fde`	`safeTransferFrom(address,address,uint256,bytes)`
`0x42842e0e`	`safeTransferFrom(address,address,uint256)`
`0xa22cb465`	`setApprovalForAll(address,bool)`
`0x18160ddd`	`totalSupply()`	view
`0xa9059cbb`	`transfer(address,uint256)`
`0x23b872dd`	`transferFrom(address,address,uint256)`

0x01ffc9a7 supportsInterface(bytes4) ERC-165

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

0x01ffc9a7 supportsInterface(bytes4)

Topic0 is the keccak256 hash of the signature, which is what a log filter matches on.

`0x11de0d3fa00d1fb368258405b5b99b26855125198fbfa160bb4bb77da6841368`	`FractionalApproval(address,address,uint256)`
`0xb48bcc1562499abbd2f0afb030be6f04d86d377e404ae72072ae38c80747dc27`	`FractionalTransfer(address,address,uint256)`
`0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31`	`ApprovalForAll(address,address,bool)`
`0x15178d238553a2e7db40a2f7e0a477e7e8d5aa2c159948e460d7feca096a8a9b`	`NonFungibleApproval(address,address,uint256)`
`0x7fbda527294e226de02d19ae2d4e417affe8039a0e72e90af2b810e53b852d52`	`NonFungibleTransfer(address,address,uint256)`

Proposals this one names in its requires field.