A computer implemented system and a method for providing user related data, such as reputational information, on users of a blockchain involved in transactions is detailed. The method includes an approach for evaluating fulfilment of transactions, particularly in the context of contracts, and then providing a record of that on the blockchain through reputational information. As a result, at a late time, this reputational information can be retrieved. Similar reputational information for other transactions can be retrieved and linked to the same user, for instance based on the use of a hash of the master public key for a user. Aggregate reputational information can be computed from the pieces of reputational information retrieved.

Systems, methods, and program products for providing and administering a digital asset network of cooperative nodes with rapid transaction settlements are disclosed.

Systems and methods are disclosed for establishing information on a state of a machine-executable contract in the context of unspent transactions (UTXOs), blockchain and deterministic finite automaton implementation of contracts, and determination of states within those. Stages of a method include determining information of interest and codes or tags identifying that information, constructing metadata associated with those codes or tags, and combining the metadata with a public key for an agent associated with the information. ScriptPubKey values of each script are used to provide keys for constructing a database and mapping the keys from the scriptPubKey values, linked to the information. A derivation of script hash addresses from the scriptPubKey values is used to populate a digital wallet. A search and match algorithm is used to find UTXOs with matching script hash addresses on a blockchain. The database is populated with UTXOs that match the script hash addresses and keys to complete the combinations. A match indicates the state.

Systems and methods of decentralized block chain voting are provided. Polling data that includes a plurality of polling options and an option identifier associated with each polling option is retrieved. A customized cryptographic currency address is generated for each of the plurality of polling options based on the corresponding option identifier associated with each polling option. A specified amount of cryptographic tokens are transferred to the customized cryptographic currency address for a selected polling option. The transfer is broadcast to a cryptographic currency network for confirmation and inclusion within a block chain ledger of the cryptographic currency network.

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.

The present disclosure relates to off-line generation, storage, and usage of digital assets, such as cryptocurrency. In particular, methods and systems are disclosed for generating off-line cryptographic key pairs for the off-line storage of digital assets using storage techniques that do not involve connecting to the Internet. In one example, a method for generating off-line cryptographic key pairs includes receiving user input from a user, determining a key generation algorithm based on the user input, wherein the key generation algorithm relates to a digital asset, generating an off-line cryptographic key pair based on the user input and key generation algorithm, and outputting the off-line cryptographic key pair.

Blockchain-based exchange method and apparatus for available resource quotas are disclosed. An example of method comprises: selecting, by a management node of a blockchain network, a set of object nodes as a target object according to a selection rule; determining, by the management node for each object node in the target object, a resource quota; determining, by the management node for the each object node, virtual resources corresponding to the resource quota as virtual resource decrements corresponding to the object node; and constructing, by the management node, a quota exchange transaction comprising the determined virtual resource decrements corresponding to the object node, and adding the quota exchange transaction to a blockchain on the blockchain network.

An apparatus, computer-readable medium, and computer-implemented method to facilitate scalable compliance and issuer governance of decentralized financial transactions especially for the trade and transfer of tokenized securities. The resulting Compliance Aware Tokens contain the rulesets to restrict transactions and facilitate regulatory reporting and oversight. The embodied process, includes of a novel combination of compliance workflows, attribute verification tools, smart contracts and other ledger controls, provides a decentralized Attribute Based Access Control (ABAC) capability. ABAC patterns are extended to govern global financial transactions without the need for an active intermediary.

A computing system that includes at least one processor and at least one memory communicatively coupled to the at least one processor is disclosed. The computing system also includes at least one network interface communicatively coupled to the at least one processor and configured to communicate with at least one vault system, each of the at least one vault system storing a respective one of N private keys or key components associated with a customer. The at least one processor is configured to receive, from each of at least one vault system, a respective private key or key component. The at least one processor is also configured to perform at least one action based on at least M of the N private keys or key components.

Disclosed is a method and system for managing life cycle of a tokenized real asset in a Blockchain-based ecosystem 100. The asset tokens of the real asset are put up for sale on a token issuance platform 118 and the proceeds from the sale are distributed to the asset owner, etc. The listing of asset tokens in the Blockchain-based ecosystem 100 requires project consensus which involves participation of key stakeholders who own utility tokens to participate in the community decision making. The asset tokens are then subjected to trading and maintenance which includes maintaining money flow corresponding to the real asset, selling the asset tokens by the asset token holders via an asset token exchange 808, and settlement of rewards to asset token holders via a settlement engine 810. Upon the end-of-term of the real asset, the asset tokens are terminated, and exit is enabled from the Blockchain-based ecosystem 100.