Abstract: Disclosed are various embodiments for transferring self-custodied cryptocurrency tokens using marketplaces. A marketplace service can determine that a first amount of a cryptocurrency has been transferred to a marketplace wallet address from a first user wallet address. Then, the marketplace service can, in response to a determination that the first amount of the cryptocurrency has been transferred to the marketplace wallet address, invoke a transfer function provided by a non-fungible token (NFT) smart contract, wherein the transfer function causes ownership of a non-fungible token (NFT) managed by the NFT smart contract to be transferred to a specified user wallet address. Subsequently, the marketplace service can, in response to the NFT being transferred to the specified user wallet address, send a second amount of the cryptocurrency from the marketplace wallet address to a second user wallet address.

Abstract: Embodiments of the present invention provide a system for central authority-permissioned transfer of blockchain tokens. In particular, the a request is received to transfer a set of blockchain tokens that represent an ownership share in a physical asset from a first user to a second user. Information about the first user and second user is compared to a central authority repository that comprises a listing of vetted users permitted to perform transactions with blockchain tokens associated with the physical asset to determine that the first and second users are verified. In response to determining that the first and second users are verified a transaction function is built for the transfer of the set of blockchain tokens from a digital wallet of the first user to a digital wallet of the second user. Finally, the transaction function is published to a blockchain network associated with the set of blockchain tokens.