ERC-6960 Dual Layer Token

DraftERCcreated 2023-04-30

Token with a two-level classification system using mainId and subId

Authors: Adam Boudjemaa (@aboudjem), Mohamad Hammoud (@mohamadhammoud), Nawar Hisso (@nawar-hisso), Khawla Hassan (@khawlahssn), Mohammad Zakeri Rad (@zakrad), Ashish Sood

ERC-165 interface ids

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

IDLT	`0xea1c731a`

Functions this standard introduces (7)

`0x443b63b9`	`allowance(address,address,uint256,uint256)`	view
`0x4f4df442`	`approve(address,uint256,uint256,uint256)`
`0x62b26417`	`balanceOfBatch(address[],uint256[],uint256[])`	view
`0xe985e9c5`	`isApprovedForAll(address,address)`	view
`0x4d47fddb`	`safeTransferFrom(address,address,uint256,uint256,uint256,bytes)`
`0xa22cb465`	`setApprovalForAll(address,bool)`
`0x8536208d`	`subBalanceOf(address,uint256,uint256)`	view

Events (5)

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

`0xc817d75deaa278e988c41cf549ef38fe195ab65e0e64cd67ba47f0d185690d58`	`Transfer(address,address,uint256,uint256,uint256)`
`0x9c1a90a2860d0b3bc72fca6164eb03292152dddd4e5b4761765e6ee36e174d26`	`TransferBatch(address,address,uint256[],uint256[],uint256[])`
`0x3a9c85c6b31f7a9d7fe1478f53e1be42e85db97ca30d1789cfef9196dbc472c9`	`Approval(address,address,uint256,uint256,uint256)`
`0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31`	`ApprovalForAll(address,address,bool)`
`0xc5fa23da9469c6ff8affe5c8e0040b5e363528a29500e45e48ab0b1bceb2ddf8`	`URI(string,string,uint256)`

What the specification covers

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Parsed from the canonical specification · discussion