Provided is a platform operator device supporting an issuance of multi-assets-backed security tokens on a blockchain network. The platform operator device comprises memory, a processor, a display unit, and a communication unit. The processor of the platform operator device is configured to communicate, by means of the communication unit and a communication network, with: one or more token issuer terminals; one or more investor terminals; and one or more custody institute servers managing the one or more token issuer terminals, respectively, the one or more investor terminals, respectively, or each electronic money wallet associated with the platform operator device, wherein the block chain network includes a plurality of computing devices performing P2P communication with each other, each of the computing devices includes at least a portion of a blockchain distributed ledger on which a plurality of pieces of smart contract code by which prescribed types of transactions are respectively made on the blockchain network and information about each of the transactions made by executing the respective pieces of smart contract code are recorded, and the plurality of pieces of smart contract code include at least issuance contract code and vault contract code.

The instant disclosure illustrates how the privacy and security of activities occurring on distributed ledger-based networks (DLNs) can be enhanced with the use of zero-knowledge proofs (ZKPs) that can be used to verify the validity of at least some aspects of the activities without private information related to the activities necessarily being revealed publicly. Methods and systems that are directed at facilitating the tracking and recovery of assets stolen on ZKP-enabled DLNs while preserving the confidentiality of the tokens are presented herein.

A digital wallet verification system in a blockchain ecosystem providing enhanced due diligence for cryptocurrency. The system includes receiving a first profile and a digital wallet. The system determines a status for the first profile, based on a verification information. Further, a score for the digital wallet is calculated based on the status of a second profile performing a blockchain transaction in the digital wallet associated with the first profile. The system provides certain private KYC information of the second profile to the first profile and indicating the status of the first profile, the second profile and/or the score associated with any digital wallet publicly on the internet at large.

A method, computer program product, and system are disclosed. The method, when implemented in a computer system, includes determining a change deposit amount, determining account information (the account information identifying an account), and initiating a deposit operation, where the deposit operation includes performing an electronic deposit of the change deposit amount to the account. The determining is performed by a digital change application that is installed in a mobile device. The digital change application is configured to initiate the electronic deposit of the change deposit amount to the account.

A system and method are provided for automatically validating users through a country, location or residence specific manner, for example to permit access to a blockchain enabled application. Optionally, such validation comprises transmission of a code to a valid communication device, capable of receiving an SMS or other message type, that validates the location and/or citizenship of the user. Optionally, additionally or alternatively, such validation comprises the application of a national citizenship and/or residency based digital schema, such as the DigiD digital identification schema of the Netherlands. The user may be validated as being a resident or citizen of a country, and/or otherwise having a valid attachment to a particular country, location or residence. Alternatively, the user may be validated as not being a resident or citizen of a country, and/or otherwise as not having a valid attachment to a particular country, location or residence.

Systems, methods, and devices described herein can configure a cryptocurrency wallet or other blockchain-based account to be self-aware and alert the owner of the wallet to one or more potentially fraudulent situations occurring with at least one account they own. The wallet may be a hardware-based cryptocurrency wallet or may be a blockchain-based account operating by an external financial institution that allows for the management of cryptocurrency assets. The self-aware wallet can be configured to track all relevant previously known and/or approved transactions associated with a user's private cryptocurrency key. A subsequent scan on one or more blockchains is performed to detect new transactions associated with the user's private key. If a newly detected blockchain transaction is not in the list of previously known or approved user transactions, a potential compromise may be occurring. Once detected, the wallet can generate a notification to the user alerting them to the issue.

A service providing method of the present invention includes receiving sound source information on a sound source to be registered to the music platform and issuing a blockchain-based NFT that represents an ownership for the sound source; receiving a request for using a service related to the sound source registered to the music platform from at least one at least one service use terminal connected to the blockchain-based network; and in response to the received request, providing a service related to the sound source based on the blockchain-based NFT issued in advance for the sound source to the at least one service use terminal.

A method, apparatus and computer program, the method comprising: selecting a transaction entity for a mobile entity wherein a digital attribute account is associated with the mobile entity; and assigning one or more items of digital attributes from the digital attribute account associated with the mobile entity to the selected transaction entity such that the assigned items can only be used for transactions between the mobile entity and the selected transaction entity.

The method 10 for mobile cryptocurrency wallet connectivity can include facilitating a blockchain transaction S100 and establishing an initial connection between a mobile client and a web client S200. The system 20 for mobile cryptocurrency wallet connectivity can include a browser 110, one or more websites 120, a web client 130, a mobile application 140, and a backend server 150.

Systems and methods for offering and purchasing tokenized securities on a blockchain platform meeting current and future federal, state, and offering and holding entity rules and regulations. Tokenized securities purchased during or after the tokenized securities offering are tradable on a secondary market. The server computer of the tokenized securities provides an automated transfer capability for tokenized securities holders.