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revert from monft #5

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Dec 24, 2024
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revert from monft #5

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38 changes: 37 additions & 1 deletion ERCS/erc-7743.md
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Expand Up @@ -4,7 +4,7 @@ title: Multi-Owner Non-Fungible Tokens (MO-NFT)
description: A new type of non-fungible token that supports multiple owners, allowing shared ownership and transferability among users.
author: James Savechives (@jamesavechives)
discussions-to: https://ethereum-magicians.org/t/discussion-on-eip-7743-multi-owner-non-fungible-tokens-mo-nft/20577
status: Review
status: Draft
type: Standards Track
category: ERC
created: 2024-07-13
Expand All @@ -20,6 +20,32 @@ Traditional NFTs enforce a single-ownership model, which does not align with the

## Specification

### Data Structures

- **Owners Mapping**: A mapping from `tokenId` to an enumerable set of owner addresses.

```solidity
mapping(uint256 => EnumerableSet.AddressSet) internal _owners;
```

- **Balances Mapping**: A mapping from owner addresses to the number of tokens they own.

```solidity
mapping(address => uint256) private _balances;
```

- **Providers Mapping**: A mapping from `tokenId` to the provider's address.

```solidity
mapping(uint256 => address) private _providers;
```

- **Transfer Values Mapping**: A mapping from `tokenId` to the `transferValue` fee.

```solidity
mapping(uint256 => uint256) private _transferValues;
```

### Token Creation and Ownership Model

1. **Minting**:
Expand Down Expand Up @@ -70,6 +96,16 @@ Traditional NFTs enforce a single-ownership model, which does not align with the
function burn(uint256 tokenId) external;
```

### Value Depreciation

1. **Value Model**:

- As the number of owners increases, the value of the MO-NFT may decrease to reflect the reduced exclusivity. This is an optional model and can be implemented at the application level.

2. **Depreciation Mechanism**:

- The value depreciation model can be defined based on the asset type and distribution strategy. This standard does not enforce a specific depreciation mechanism but acknowledges its importance.

### Interface Definitions

**Minting Functions**
Expand Down