A method for processing data for a blockchain, the method adapted to an unspent transaction output system of the blockchain and applied to a blockchain node, the method including: receiving first transaction data sent by a client, wherein the first transaction data includes transaction input data and transaction output data, wherein the transaction output data includes a category identification, a transaction amount, a recipient address and additional information, wherein the category identification is configured to indicate whether the first transaction data is associated with a smart contract, and the additional information is configured to indicate information required for operating the smart contract when the first transaction data is associated with the smart contract; and storing the first transaction data into the blockchain via consensus verification with other blockchain nodes, and storing a corresponding smart contract status into a local database for each blockchain node based on the transaction output data.

Cryptographic tokens may be transferred between users of a system. A request may be received from a first user to transfer to a second user at least a part of a float of internal cryptographic tokens. A number of the internal cryptographic tokens drawn from the float are then be sent to a digital wallet of the second user. This sending represents at least one transaction that is recorded on an internal blockchain. The float is obtained in an earlier transaction also recorded on the internal blockchain, and the number of tokens in the float is based on a number of external cryptographic tokens obtained through another earlier transaction recorded on an external blockchain.

The present disclosure relates to a system for locking a digital asset. In one implementation, the system may include a first computer node that reads a private data store associated with the first computer node and/or reads a distributed ledger to confirm a digital asset is unlocked and can be transferred from the first computer node. The first computer node cryptographically signs and sends a proposed digital lock to a second computer node. When activated, the digital lock prevents transfer of the digital asset from the first computer node to another computer node that is not the second computer node. The first computer node also reads a distributed ledger to confirm the distributed ledger contains the digital lock in an activated state. The first computer node transfers the digital asset from the first computer node to the second computer node.

A blockchain system is disclosed. The blockchain system includes bank nodes and mobile nodes, and each of the bank nodes includes an identity ledger that includes a public key of each of the bank nodes, a digital ID for identifying an identity of a user of each of the bank nodes, a public key of each of the mobile nodes, and a digital ID for identifying an identity of each of the mobile nodes.

Electronic watch faces can be created in customized and associated with a block chain system. More particularly, the block chain's system uses non-fungible tokens which are in general unique, to represent the ownership of a specific watch face. Users own the token and can display the watch face only while they own the token. After selling the watch face, the token is changed to represent the new owner of the token and the original owner can no longer display the watch face at that point.

An example operation may include one or more of receiving, by a data server node, requests for data from a plurality of user nodes connected to a blockchain, retrieving, by the data server node, the data from the blockchain, dividing, by the data server node, the data into a plurality of portions and generating copies of the plurality of the portions, changing, by the data server node, at least one bit in each of the copies, encrypting, by the data server node, the copies and recording the copies into blocks on a second blockchain, recording, by the data server node, a plurality of sequence numbers of the blocks, and storing, by the data server node, the plurality of the sequence numbers on a second blockchain to be accessed by the plurality of the user nodes.

A method for assisting wallet providers in regulatory compliance for blockchain transactions includes: receiving, by a receiver of a processing server, a new blockchain transaction from a first computing device, the new blockchain including at least a destination address associated with a blockchain wallet as a recipient for the new blockchain transaction; generating, by a processor of the processing server, a reference identifier for the new blockchain transaction; identifying, by the processor of the processing server, a profile for the blockchain wallet based on the destination address; transmitting, by a transmitter of the processing server, the reference identifier to the first computing device; and transmitting, by the transmitter of the processing server, a notification message to a second computing device, the notification message including at least the reference identifier and data associated with the blockchain wallet.

A mobile wallet computer system may send a token to a customer computing device to share the token with a recipient computer system in exchange for payment for a service or a good. The mobile wallet computer system may receive, the token, a recipient public key associated with a MBC account of the recipient, and a transaction amount. The mobile wallet computer system determines whether the recipient public key is registered with the mobile wallet computer system. The mobile wallet computer system updates a ledger that lists a MBC balance of the MBC account of the recipient and the ledger that lists the MBC balance of the customer or transmits, to MBC processing nodes, a request to transfer the amount of MBC in a pooled MBC account of a financial institution to the MBC account of the recipient.

Systems and methods for active application of secondary transaction instrument tokens in transaction processing systems are provided. A transaction processing server receives a transaction request identifying a request to authorize a transaction using a first transaction instrument and a first token processing engine issues the transaction request with a first transactable token associated with the first transaction instrument for use by a first remote entity to authorize the first transaction instrument. The transaction processing server receives a transaction request failed message and actively routes a non-transactable token from the first token processing engine to a second token processing engine. The second token processing engine reissues the transaction request with a second transactable token associated with the second transaction instrument for use by a second remote entity to authorize the second transaction instrument and receives an indication that the transaction completed successfully using the second transactable token.

A method includes initiating, by a first computing device, an interaction with a second computing device. The first computing device includes a first digital asset unit and the second computing device includes a second digital asset unit. The first digital asset unit stores assignable tokens. The method further includes determining to assign conditional access rights to an amount of the assignable tokens to the second digital asset unit where the conditional access rights are in accordance with a set of conditions. The assignment of conditional access rights is a self-enforcing smart contract embedded in an assignable token distributed ledger technology. The method further includes locking the amount of the assignable tokens stored in the first digital asset unit and providing the conditional access rights to the amount of the assignable tokens to second digital asset unit. The second digital asset unit does not store the amount of the assignable tokens.