Abstract: A system for communicating between blockchains on heterogeneous blockchain networks. The system can include a sending blockchain configured to transmit a first message via a sending blockchain protocol, wherein the sending blockchain forms a part of a sending blockchain network. The system can include a sending adapter node configured to receive the first message from the sending blockchain and translate the first message from the sending blockchain protocol to an adapter protocol. The system can include a receiving adapter node configured to receive the first message from the sending adapter node and translate the first message from the adapter protocol to a receiving blockchain protocol. The system can include a receiving blockchain configured to receive the first message from the receiving adapter node, and validate the first message, wherein the receiving blockchain forms a part of a receiving blockchain network.

Abstract: A method for parallel execution of dispatches in a smart contract in a blockchain includes: receiving, by a blockchain node in a blockchain network, a smart contract; identifying dispatches as inputs for the smart contract; separating the dispatches into sets, where each set includes at least one dispatch where each dispatch includes a common reference value associated with an entry in a prior block in the blockchain; determining one valid dispatch in each set based on predetermined criteria; executing the smart contract using the one valid dispatch for each set; a new block for the blockchain including blockchain data entries generated by execution of the smart contract; and transmitting the generated new block to a plurality of additional nodes in the blockchain network.

Abstract: A system for enabling communication between blockchains on heterogeneous blockchain networks. The system can include a sending blockchain network comprised of a sending blockchain that includes a plurality of blocks, each block including a block header and one or more transaction values associated with an identification request transmitted by the sending blockchain. The system can include a directory service node configured to receive the identification request from the sending blockchain, and identify a receiving blockchain, which forms part of a receiving blockchain network. The system can include an identity service node configured to receive a trust request from the directory service node to determine whether a valid trust certificate is available for the receiving blockchain, and enable communication between the sending blockchain and the receiving blockchain, when the valid trust certificate is determined to be available.

Abstract: A system for enabling communication between blockchains on heterogeneous blockchain networks. The system can include a sending blockchain network comprised of a sending blockchain that includes a plurality of blocks, each block including a block header and one or more transaction values associated with an identification request transmitted by the sending blockchain. The system can include a directory service node configured to receive the identification request from the sending blockchain, and identify a receiving blockchain, which forms part of a receiving blockchain network. The system can include an identity service node configured to receive a trust request from the directory service node to determine whether a valid trust certificate is available for the receiving blockchain and enable communication between the sending blockchain and the receiving blockchain, when the valid trust certificate is determined to be available.

Abstract: A method for enabling refund of a non-fungible token (NFT) includes: receiving a transaction message for a payment transaction; processing the payment transaction using the transaction message, where processing includes identification of a transaction identifier for the payment transaction; transmitting the transaction identifier to a first device; receiving a notification message including the transaction identifier and a token identifier, where the token identifier is associated with the NFT; receiving a refund request message from a second device, where the refund request message includes the transaction identifier and/or the token identifier; processing a refund transaction for the payment transaction; and submitting the transaction identifier as input into a smart contract stored in a blockchain associated with the NFT for reversal of ownership of the NFT.

Abstract: Disclosed are exemplary embodiments of systems and methods for facilitating a transaction for the purchase of a product through an unattended vendor. One exemplary method includes capturing a facial image of a user and identifying the user based on the captured facial image. The method then includes compiling a pre-authorization request including credential associated with an account for the user and a first amount and, upon receipt of an approval of the request, manipulating a locking mechanism coupled to a container associated with the unattended vendor to permit access by the user to products included in the container. The method further includes capturing an image of a product removed from the container, identifying the product based on the image, and compiling an authorization request for purchase of the product based on the credential and a second amount associated with the price of the removed product.

Abstract: A method for parallel execution of dispatches in a smart contract in a blockchain includes: receiving, by a blockchain node in a blockchain network, a smart contract; identifying dispatches as inputs for the smart contract; separating the dispatches into sets, where each set includes at least one dispatch where each dispatch includes a common reference value associated with an entry in a prior block in the blockchain; determining one valid dispatch in each set based on predetermined criteria; executing the smart contract using the one valid dispatch for each set; a new block for the blockchain including blockchain data entries generated by execution of the smart contract; and transmitting the generated new block to a plurality of additional nodes in the blockchain network.

Abstract: A system for communicating between blockchains on heterogeneous blockchain networks. The system can include a sending blockchain configured to transmit a first message via a sending blockchain protocol, wherein the sending blockchain forms a part of a sending blockchain network. The system can include a sending adapter node configured to receive the first message from the sending blockchain and translate the first message from the sending blockchain protocol to an adapter protocol. The system can include a receiving adapter node configured to receive the first message from the sending adapter node and translate the first message from the adapter protocol to a receiving blockchain protocol. The system can include a receiving blockchain configured to receive the first message from the receiving adapter node, and validate the first message, wherein the receiving blockchain forms a part of a receiving blockchain network.

Abstract: A system for enabling communication between blockchains on heterogeneous blockchain networks. The system can include a sending blockchain network comprised of a sending blockchain that includes a plurality of blocks, each block including a block header and one or more transaction values associated with an identification request transmitted by the sending blockchain. The system can include a directory service node configured to receive the identification request from the sending blockchain, and identify a receiving blockchain, which forms part of a receiving blockchain network. The system can include an identity service node configured to receive a trust request from the directory service node to determine whether a valid trust certificate is available for the receiving blockchain and enable communication between the sending blockchain and the receiving blockchain, when the valid trust certificate is determined to be available.

Abstract: Disclosed are exemplary embodiments of systems and methods for facilitating a transaction for the purchase of a product through an unattended vendor. One exemplary method includes capturing a facial image of a user and identifying the user based on the captured facial image. The method then includes compiling a pre-authorization request including credential associated with an account for the user and a first amount and, upon receipt of an approval of the request, manipulating a locking mechanism coupled to a container associated with the unattended vendor to permit access by the user to products included in the container. The method further includes capturing an image of a product removed from the container, identifying the product based on the image, and compiling an authorization request for purchase of the product based on the credential and a second amount associated with the price of the removed product.