A system and method for a stable cryptocurrency that uses multiple stabilization functions to obtain a network effect.

Various embodiments of the present application are directed towards systems and methods for hybrid blockchain control. According to some embodiments a method for hybrid blockchain control, an update to a distributed blockchain is received from a blockchain system. The blockchain system includes multiple nodes individually storing copies of the distributed blockchain and individually updating the copies by a consensus process. A determination is made as to whether the distributed blockchain has been fraudulently modified based on the received update. In response to determining the distributed blockchain has been fraudulently modified: 1) a corrective block is disseminated to the blockchain system to trigger the consensus process on the nodes; and 2) a predefined override in the consensus process is invoked to update the copies of the distributed blockchain in a manner that bypasses an illegitimate block. Further, the predefined override is invoked while the consensus process processes the corrective block.

A package management system generates a signature for a software package and generates an indication of the signature that includes a Merkle Tree root. The package management system then initiates a transaction in a blockchain system. The transaction comprises an indication of the signature for the software package and is to be stored in a blockchain. The package management system distributes the software package to a computing device with an indication of a location of the signature in the blockchain.

Techniques for routing to content within a mesh network based on a blockchain are provided. An electronic device can receive data from a mesh network to establish the device as a node on the mesh network. The established node can generate a cryptocurrency wallet that can be loaded with an amount of cryptocurrency. A blockchain can store searchable transactions related to content stored within the mesh network. The established node can search the blockchain to locate content and can transmit a request for certain content. The established node may issue a payment to a node hosting the requested content and/or to any intermediate nodes facilitating the established node's access to the content.

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

The invention provides a financial investment application algorithm trading method and system based on a blockchain smart contract, applicable to a blockchain network executing the smart contract, comprising: an user interface program in an investment end, a financial investment application program in a generation end, a financial instrument trading center for trading various generation products, a smart trading gateway managing generation accounts, and a smart contract. The financial investment activities and profit sharing constructed on the invention is automated according to the smart contract, and the trading terms of agreement are immutable, and all the activities are actively collected in the blockchain for viewing, which are traceable, immutable and irreversible, and enable the investment end and the generation end to execute profit sharing according to the smart contract, effectively preventing any respective parties from not executing contract and avoiding the risk of financial fraud.

A computer-implemented method comprises: committing a transaction amount t of a transaction with a commitment scheme to obtain a transaction commitment value T, the commitment scheme comprising at least a transaction blinding factor r_t; encrypting a combination of the transaction blinding factor r_t and the transaction amount t with a second public key PK_2_B of a recipient of the transaction, wherein: the recipient is further associated with a first public key PK_1_B as an address for receiving the transaction amount t; and transmitting the transaction commitment value T and the encrypted combination to a recipient node associated with the recipient for the recipient node to verify the transaction.

Approaches presented herein provide for the management of viewership data, including contractual terms and transaction history, through immutable distributed ledgers, such as blockchain. Temporary identifiers can be used to store viewership data for a viewer to one of these public, distributed ledgers. A physical device identifier is associated with a media device. An identity manager generates and rotates temporary public identifiers that are mapped to the physical identifier of the device. Viewership data from the device and the related temporary identifiers are stored on the public distributed ledger. The identity manager receives a contract to provide viewership data of media device over a particular period. The identity manager supplies the temporary identifiers of the media device over the period specified. Upon fulfillment of the contract, the identity manager rotates the temporary identifier associated with physical device to ensure that prior temporary identifiers are no longer mapped to the same physical device identifier. The terms of the contract and subsequent viewership data are stored on the distributed ledger.

The present invention is related to an electronic transaction system using a blockchain to store transaction records. The electronic transaction system includes a computing device having a verification module, a processing module and a broadcasting module, and the blockchain includes a plurality of user nodes connecting to the computing device. The verification module is configured to generate notification information according to a transaction event, and the notification information is transmitted to a first and second user nodes. The processing module is configured to generate a first and second transaction currency values, the sum of which is zero, after the verification module receives the verification information from the first and second user nodes. The broadcasting module is configured to record transaction information associated with the transferring of the first and second transaction currency values in a data block, and to broadcast the data block to each of user nodes.

A network node includes at least one processor, at least one memory, and at least one network interface. The network node is configured to be within a plurality of network nodes communicatively coupled in a peer-to-peer network of network nodes implementing a distributed ledger. The network node is configured to be communicatively coupled to at least one remotely located computing device through the at least one network interface. The at least one processor is configured to determine a split ratio for a new split of security tokens held in at least one address of the distributed ledger. The at least one processor is also configured to store an indication of the split ratio without updating token balances for all of the at least one address in a list of addresses holding at least one of the security tokens.