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A wallet protocol and implementation to allow transferableFractional Ownership to be implemented for ERC721 tokens (NFTs).

People often want to co-own an NFT, as explained in the article linked above. Implementing this using a traditional multi-sig wallet is a logical next step but this proposal brings several important improvements in terms of further closing the gap between decentralized and centralized financila systems:

• As a Minority Owner (e.g. 20%), if the Majority decides to sell the NFT, I should still be entitled to 20% of the profit received.

• As a Shareholder, I would like to be able to freely adjust my stake in the free market / exchanges. Stakes into this ERC721 token under this scheme are ERC20 tokens. A multi-sig wallet does not offer this feature.

• We believe the above is an important step in enabling the creation portfolios of NFTs, such as using theSet Protocol

• It is the logical next step in the evolution of a decentralized financial system. In the traditional financial system, high value items are rarely solely owned by 1 person.

Some concrete and easy-to-relate example use cases include representing an apartment co-ownership 🏠, selling fraction of an art piece 🎨, etc.

• NFTs (ERC721) and their shares (ERC20) can be traded directly on DEX using0x protocol in FNFT Wallet.
• CreateSet bundles of shares (ERC20) directly in the FNFT wallet.
• The whole ecosystem, including0x Exchange contract,some ERC721 tokens andan instance of the FNFT wallet contract, has been deployed to thePOA Ethereum Network testnet.
• Works great with mobile wallets such asCoinbase Wallet

(cd truffle && npm i && truffle compile)(cd dapp && yarn && yarn run start)