ERC-7681 Dual Nature Multi Token Protocol

DraftERCcreated 2024-04-08requires ERC-20, ERC-1155

Combining fungible token ERC-20 and multi-token ERC-1155

Author: Sennett Lau (@sennett-lau)

ERC-165 interface ids

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

IERC7681 0x4d98f104

`0xdd62ed3e`	`allowance(address,address)`	view
`0x095ea7b3`	`approve(address,uint256)`
`0x00fdd58e`	`balanceOf(address,uint256)`	view
`0x70a08231`	`balanceOf(address)`	view
`0x4e1273f4`	`balanceOfBatch(address[],uint256[])`	view
`0x313ce567`	`decimals()`	view
`0xe985e9c5`	`isApprovedForAll(address,address)`	view
`0x06fdde03`	`name()`	view
`0x2eb2c2d6`	`safeBatchTransferFrom(address,address,uint256[],uint256[],bytes)`
`0xf242432a`	`safeTransferFrom(address,address,uint256,uint256,bytes)`
`0xa22cb465`	`setApprovalForAll(address,bool)`
`0x95d89b41`	`symbol()`	view
`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.

`0x046d6779`	`getSkipToken(address)`
`0x918fb645`	`setSkipToken(bool)`

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

`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`Transfer(address,address,uint256)`
`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`Approval(address,address,uint256)`
`0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62`	`TransferSingle(address,address,address,uint256,uint256)`
`0x4a39dc06d4c0dbc64b70af90fd698a233a518aa5d07e595d983b8c0526c8f7fb`	`TransferBatch(address,address,address,uint256[],uint256[])`
`0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31`	`ApprovalForAll(address,address,bool)`
`0x6bb7ff708619ba0610cba295a58592e0451dee2622938c8755667688daf3529b`	`URI(string,uint256)`
`0xf1bc2fe74e66b81a8adadbaca75812abdb42d917a9fb554d644695c5765aafe7`	`SkipTokenSet(address,bool)`