Abstract: Systems and methods exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers using first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.

Abstract: A system and corresponding method exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers. The system comprises first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: A computer-based system, method, and computer program product for enforcing conditional transfer of digital assets leverage a cross-chain clearinghouse control system implemented upon one or more blockchain networks. The cross-chain clearinghouse control system is configured to approve a transfer of a digital asset if the transfer satisfies an encoded condition or rule configured in the digital asset. Likewise, the cross-chain clearinghouse control system is configured to disapprove and thereby block the transfer if the transfer does not satisfy such a condition or rule. One of a first and second entity involved in the transfer is a digital wallet implemented upon the blockchain network, and an other of the first and second entities is implemented apart from the blockchain network.

Abstract: A computer-based system, method, and program product for providing liquidity for exchanges of digital assets ensure that an automated market maker program provides liquidity to support such an exchange. The system includes a blockchain network with multiple nodes. A node is be configured to execute an automated market maker (AMM) cryptographic system configured to receive collateral assets from other nodes, encapsulate the assets in a collateral pool, and mint a collateral token from the encapsulated assets. The token is configured to consolidate liquidity within a blockchain protocol for an exchange of a digital asset. A blockchain clearinghouse control system may be implemented upon the network to process the token and approve the exchange if performed/facilitated by/on the node or disapprove the exchange if performed separately from the node. Such a control system thereby ensures that the exchange is secure and that the AMM system provides liquidity to support the exchange.

Abstract: A computer-based system and method for storing and transferring digital assets between multiple blockchain networks including a first blockchain network and a second blockchain network provide means of overcoming a disparity between an aspect of form or function of the first blockchain network and a corresponding aspect of form or function of the second blockchain network in conjunction with facilitating a transaction within which the digital assets are transferred. The system and method include at least a subset of multiple nodes configured to enable the storage of digital assets therein, and to facilitate the transaction involving a digital asset stored therein.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.

Abstract: A system and corresponding method exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers. The system comprises first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: A system and corresponding method, for blockchain cryptocurrency exchange, track at least one pending blockchain transaction on a corresponding blockchain. The at least one pending blockchain transaction has been executed, but not yet committed, on the corresponding blockchain. The system and corresponding method determine whether an unexecuted blockchain transaction for cryptocurrency exchange is valid or invalid as a function of transaction information associated with the unexecuted blockchain transaction and the at least one pending blockchain transaction. The system and corresponding method output a result indicating whether the unexecuted blockchain transaction was determined to be valid or invalid, causing the unexecuted blockchain transaction to be executed or denied, respectively.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.