ERC-3475 Abstract Storage Bonds

FinalERCcreated 2021-04-051 later proposal build on itrequires ERC-20, ERC-721, ERC-1155

Interface for creating tokenized obligations with abstract on-chain metadata storage

Authors: Yu Liu (@yuliu-debond), Varun Deshpande (@dr-chain), Cedric Ngakam (@drikssy), Dhruv Malik (@dhruvmalik007), Samuel Gwlanold Edoumou (@Edoumou), Toufic Batrice (@toufic0710)

Functions this standard introduces (13)

`0xb15edbe5`	`activeSupply(uint256,uint256)`	view
`0x443b63b9`	`allowance(address,address,uint256,uint256)`
`0x2d760d57`	`balanceOf(address,uint256,uint256)`	view
`0xbc3c19f7`	`burnedSupply(uint256,uint256)`	view
`0x3cf3a604`	`classMetadata(uint256)`	view
`0xc7da92e1`	`classValues(uint256,uint256)`	view
`0x572e5ef2`	`getProgress(uint256,uint256)`	view
`0x1fa03a2b`	`isApprovedFor(address,address)`	view
`0x029ba4eb`	`nonceMetadata(uint256,uint256)`	view
`0x693f5548`	`nonceValues(uint256,uint256,uint256)`	view
`0xccea7b86`	`redeemedSupply(uint256,uint256)`	view
`0x4bb95aa2`	`setApprovalFor(address,bool)`
`0xc2458d6b`	`totalSupply(uint256,uint256)`	view

Events (1)

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

0x3a950f10bb6df353a4ab85913de7c26461edd1b6250912c3ddcbe92b91643584 ApprovalFor(address,address,bool)

Depends on (3)

Proposals this one names in its requires field.

Built on by (1)

Later proposals that name this one in their requires field.

What the specification covers

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