Computer-implemented systems and methods are detailed for establishing information on states of a machine executable contract, for instance in the context of unspent transactions (UTXOs), blockchain and deterministic finite automaton (DFA) implementation of contracts and the determination of states within those. The stages can include determining the information of interest and the codes or tags identifying that information, constructing the metadata associated with those codes or tags, combining that with a public key for an agent that will be associated with the information. The scriptPubKey values of each script may be used to provide the keys for use in constructing an external database and more specifically mapping the keys from the scriptPubKey values, linked to the information of interest. To obtain the other half of the combination, there is a derivation of the script hash addresses from the scriptPubKey values, with those being used to populate a digital wallet. A search and match algorithm is then used to find UTXO's with matching script hash addresses on the blockchain. These then populate the aforementioned database with UTXO's that match to the script hash addresses and hence to the keys to complete the combinations. A match indicates in a definitive manner the state.

A method includes maintaining a token database in a computer system, where the token database maps tokens to primary account numbers (PANs) for payment card accounts. The method further includes storing a respective entry in the token database for a token, with the token being mapped by the respective entry to a respective PAN and the respective PAN identifies a payment card account that belongs to a cardholder who uses a mobile device. The method also includes provisioning the token to the mobile device and determining at a subsequent point in time that a lifecycle event has occurred or will soon occur with respect to the token. In addition, the method includes updating the respective entry for the token in the token database in response to determining that the lifecycle event has occurred.

Disclosed is a currency management application to facilitate customized transfer of value between two parties via a digital coin. The digital coin can be personalized and programmed. For example, the digital coin can be personalized with a set of attributes, such as a design, color, shape or theme, and can be programmed with a set of rules, such as where the digital coin can be redeemed and/or who the digital coin can be transferred to. The digital coin is associated with a value, which is determined in terms of a fiat currency or cryptocurrency. This digital coin can be used for peer to peer payments, merchant payments and redeemable/withdrawn through a financial institution, such as a bank account.

Systems and methods are described for implementing blockchain-based content engagement platforms. In several embodiments, the content engagement platform includes a registry service which enables verified content creators to mint Non-Fungible Tokens (NFTs). In many embodiments, media wallet applications enable users to securely store NFTs and/or other tokens on their devices. In a number of embodiments, the media wallet applications collect data concerning media consumed by users and aggregate the media consumption data in a permissioned analytics blockchain. The manner in which the media consumption data is stored can enable users to control permission to access their personal data. In one embodiment, a media wallet is provided that can securely store NFTs, display a user interface through which user instructions concerning data access permissions are received, and cause media consumption data to be written to at least one immutable ledger in conjunction with a set of data access permissions.

A transaction terminal provides processing for payment using a cryptocurrency during a transaction being conducted at the transaction terminal. The transaction terminal further provides processing for a refund transaction utilizing cryptocurrency.

A technical idea of the present disclosure may include issuing an original NFT authenticating ownership of a digital file; storing an original digital file authenticated by the original NFT in a safe distributed storage; generating a copy of a digital file for lease including lessee-related information; storing the copy of the generated digital file for leasing in a leased distributed storage; generating a temporary Uniform Resource Locator (URL) enabling access to the copy of the digital file for lease; and issuing an original NFT authenticating a lease right of the digital file.

The present invention provides a lottery drawing method for multiple NFT prizes and the NFT lottery system thereof. The NFT system comprising an ID generator, a comparing processor, and a notifying processor. The ID generator can randomly generate a first wallet ID, a first blockchain ID, a second wallet ID and a second blockchain ID. The comparing processor can compare the second wallet ID and the second blockchain ID with the first wallet ID and the first blockchain ID, to see if there is a win. The notifying processor can inform the user whether there is a win and what NFT prize is won. By using this lottery drawing method and the system, the user can quickly and simply carry out the NFT-based lottery game.

An electronic device receives, from a user, a restriction that restricts how sound of a digital asset plays to non-owners of the digital asset that is tokenized as a non-fungible token (NFT). One or more electronic devices tokenize the digital asset as the NFT on a blockchain that stores the restriction how the sound of the digital asset plays to the non-owners of the NFT.

A method includes storing, by a first computing device, assignable tokens in a first partition of a plurality of partitions of a first address of a first digital asset unit and initiating an interaction with a second computing device including a second digital asset unit. The method further includes determining to assign conditional access rights to an amount of the assignable tokens to the second computing device for the interaction. The assignment of the conditional access rights is a smart contract. The method further includes locking, in accordance with the smart contract, the amount of the assignable tokens stored in the first partition, associating a second partition with the second digital asset unit, and associating the amount of the assignable tokens with the second partition. The second digital asset unit does not store the amount of the assignable tokens.

A method of transaction between a first cryptocurrency transacted based on a first blockchain and a second cryptocurrency transacted based on a second blockchain includes obtaining first transaction information with respect to a first transaction in which a first user transmits the first cryptocurrency to a second user, and second transaction information with respect to a second transaction accompanying the first transaction and in which the first user receives the second cryptocurrency from the second user; if the first transaction information satisfies terms of agreement between the first user and the second user, adding, to the first transaction information, first condition information depending on validity of the second transaction information and activating the first transaction of the first cryptocurrency; and digitally signing the first transaction information to which the first condition information is added, to prove the terms of agreement, and transmitting the first transaction information to a node on a network of the first blockchain.