A record linking platform having a computer system with a processor, multiple databases each having records, such as private health information. Each of the multiple databases are not in direct communication with one another. A control center is in communication with the different entities, the control center configured to: generate a site configuration file, a key configuration file, and a broker configuration file. A keymaster configured to: receive the key configuration file, generate a hash key, and transmit the hash key to the databases. The databases configured to: receive the site configuration file and the hash key; process the records to generate evaluation records data that conform to a data model specified in the site configuration file; and encrypt the evaluation records using the hash key. An honest broker configured to: receive the broker configuration file and the encrypted evaluation records; and link the encrypted evaluation records without decrypting.

A query directed to database data stored across a set of files is received. The query includes predicates and each file from the set of files is associated with metadata stored in a metadata store that is separate from a storage platform that stores the set of files. One or more files are removed from the set of files whose metadata does not satisfy a predicate of the plurality of predicates to generate a pruned set of files. One or more predicates are removed that are satisfied by the metadata of the pruned set of files to generate a modified query.

Transaction-enabled systems and methods for royalty apportionment and stacking are disclosed. An example system may include a plurality of royalty generating elements (a royalty stack) each related to a corresponding one or more of a plurality of intellectual property (IP) assets (an aggregate stack of IP). The system may further include a royalty apportionment wrapper to interpret IP licensing terms and apportion royalties to a plurality of owning entities corresponding to the aggregate stack of IP in response to the IP licensing terms and a smart contract wrapper. The smart contract wrapper is configured to access a distributed ledger, interpret an IP description value and IP addition request, to add an IP asset to the aggregate stack of IP, and to adjust the royalty stack.

Transaction-enabled systems and methods for royalty apportionment and stacking are disclosed. An example system may include a plurality of royalty generating elements (a royalty stack) each related to a corresponding one or more of a plurality of intellectual property (IP) assets (an aggregate stack of IP). The system may further include a royalty apportionment wrapper to interpret IP licensing terms and apportion royalties to a plurality of owning entities corresponding to the aggregate stack of IP in response to the IP licensing terms and a smart contract wrapper. The smart contract wrapper is configured to access a distributed ledger, interpret an IP description value and IP addition request, to add an IP asset to the aggregate stack of IP, and to adjust the royalty stack.

Provided are a transaction delegation method, a transaction delegation system, and a computer readable medium storing a computer program. In this transaction delegation method: a second device that stores account data in a blockchain system receives, through communication outside the blockchain system, delegation data from a first device used by a user, the delegation data being for delegating execution of a desired transaction of the user in the blockchain system; a delegation transaction that causes an execution smart contract executing a transaction based on an account of the user in the blockchain system to execute the desired transaction is created on the basis of the delegation data transmitted from the first device; and the delegation transaction with payment of a fee token or a utility token required for executing a transaction is broadcast to the blockchain system on the basis of the account data.

A method of performing a virtual network function. The method comprises forking a user plane process on a computer by a virtual network function process that executes on the computer, forking a control plane process on the computer by the virtual network function process, adding blocks to a user plane blockchain by the user plane process that record user plane events, adding blocks to a control plane blockchain by the control plane process that record control plane events, creating a first package of information by the user plane process based on the user plane blockchain, self-terminating by the user plane process while passing the first package of information to the virtual network function process, creating a second package of information by the control plane process based on the control plane blockchain, self-terminating by the control plane process while passing the second package of information to the virtual network function process.

A method for enabling pruning of a blockchain of a blockchain network includes creating an active blocks commitments Merkle tree from hashes of active blocks and creating an active smart contracts commitments Merkle tree from hashes of active smart contracts. The Merkle trees are created after an amount of blocks created in the blockchain has reached a threshold set by a pruning threshold parameter stored in the blockchain network. Hashes of the roots of the Merkle trees are stored in a header of a new block as a new genesis block. The new genesis block is broadcast to the blockchain network. A set of the active blocks and active smart contracts used respectively to create the active blocks commitments Merkle tree and the active smart contracts commitments Merkle tree are committed to upon the blockchain network reaching consensus on the new genesis block.

Method and system are provided for writing output from map-reduce jobs to an archive file. The method may include providing an archive manager and exposing an interface to be called from map-reduce jobs to output to an archive file in a map-reduce distributed file system. The method may also include using a buffering database as a temporary cache to buffer updates to the archive file. Handling by the archive manager calls from map-reduce jobs may allow: reading directly from an archive file or from a job index at the buffering database; writing to a job index at the buffering database used as a temporary cache to buffer updates; and serializing updates from the buffering database to the archive file.

Method and system are provided for writing output from map-reduce jobs to an archive file. The method may include providing an archive manager and exposing an interface to be called from map-reduce jobs to output to an archive file in a map-reduce distributed file system. The method may also include using a buffering database as a temporary cache to buffer updates to the archive file. Handling by the archive manager calls from map-reduce jobs may allow: reading directly from an archive file or from a job index at the buffering database; writing to a job index at the buffering database used as a temporary cache to buffer updates; and serializing updates from the buffering database to the archive file.

A method for stream-processing biomedical data includes receiving, by a file system on a computing device, a first request for access to at least a first portion of a file stored on a remotely located storage device. The method includes receiving, by the file system, a second request for access to at least a second portion of the file. The method includes determining, by a pre-fetching component executing on the computing device, whether the first request and the second request are associated with a sequential read operation. The method includes automatically retrieving, by the pre-fetching component, a third portion of the requested file, before receiving a third request for access to least the third portion of the file, based on a determination that the first request and the second request are associated with the sequential read operation.