Described herein is a method for executing an Internet-of-Things application. The method includes providing a machine-readable language configured to encode the Internet-of-Things application as an executable smart contract, and providing or accessing a distributed system configured to execute the executable smart contract. The distributed system includes one or more field devices, one or more gateways, and a distributed ledger system. The distributed ledger system includes at least one access point and a plurality of computers, each computer configured to execute at least one peer process, and executing the executable smart contract on the distributed system. The executable smart contract includes instructions that cause the distributed system to process and exchange data, the exchanged data exchanged between the one or more field devices, or the one or more gateways, or the at least one access point, or at least one peer process, or any combination thereof.

Computer-implemented methods and systems are provided which are suitable for implementation in transaction validation nodes of a blockchain network. Modified blockchain node structures, network architectures, and protocols for handling large numbers of transactions and large transaction blocks are described. The invention is particularly suited, but not limited, to use with the Bitcoin blockchain. A computer-implemented method is provided which includes: (i) receiving transactions from the blockchain network; (ii) validating transactions received from the blockchain network; (iii) maintaining a distributed, decentralized storage of validated transactions with other transaction validation nodes in the blockchain network; and (iv) distributing data corresponding to said validated transactions to the blockchain network for mining.

Computer-implemented methods and systems are provided which are suitable for implementation in transaction validation nodes of a blockchain network. Modified blockchain node structures, network architectures, and protocols for handling large numbers of transactions and large transaction blocks are described. The invention is particularly suited, but not limited, to use with the Bitcoin blockchain. A computer-implemented method is provided which includes: (i) receiving transactions from the blockchain network; (ii) validating transactions received from the blockchain network; (iii) maintaining a distributed, decentralized storage of validated transactions with other transaction validation nodes in the blockchain network; and (iv) distributing data corresponding to said validated transactions to the blockchain network for mining.

Disclosed are examples of systems, apparatus, devices, computer program products, and methods implementing aspects of a decentralized content fabric. In some implementations, one or more processors are configured to provide fabric nodes of an overlay network, including one or more fabric nodes that receive a client's request to access digital content on the overlay network. The request includes an authorization token digitally signed by or on behalf of a user of the client. The fabric node(s) extract a user identifier (ID) from the authorization token, then determine that one or more rules maintained on the overlay network are satisfied. The one or more rules condition access to the digital content upon the extracted user ID matching an ID associated with an owner of a digital instrument. The digital instrument, which can be a non-fungible token, is stored in a blockchain ledger as a unique representation of the digital content.

A computer-implemented method for connecting to a layered network. The layered network comprises a plurality of nodes arranged in an ordered set of layers. The ordered set of layers comprises, in order, a core layer comprising a set of core nodes, a second layer comprising a set of second nodes, and one or more outer layers each comprising a respective set of outer nodes. Each core node is connected to at least one other core node. The method is performed by a connecting node and comprises connecting to the network according to a connection protocol. The connection protocol requires that each node must connect to at least one node of a preceding layer, and each outer node must also connect to at least one core node.

Aspects of the current subject matter are directed to providing query results to clients by incorporating pause and/or detach operations into the query execution after a first fetch of results. The pause and the detach operations for query execution consistent with implementations of the current subject matter result in reduced times and conserved resources in providing query results by computing only results necessary to satisfy a first fetch call prior to computing results necessary to satisfy subsequent fetch calls.

In a data distribution method according to the disclosure, first authentication servers and a first data server belong to a first group, and second authentication servers and a second data server belong to a second group different from the first group. A first authentication server obtains first transaction data that includes a data obtaining request indicating a request for obtaining or referring to data pertaining to an apparatus, and records a block including the first transaction data into its distributed ledger belonging to the first group. A second authentication server obtains the first transaction data, and records the block including the first transaction data into a distributed ledger belonging to the second group. The first authentication server causes the first data server to transfer the data pertaining to the apparatus held therein to the second data server or to make such data available for reference by the second data server.

Systems and methods are provided for switching computing devices between edge servers and peer groups. One example method includes receiving, at a client computing device and from a first computing device, media content. A request to initiate an assisted delivery service is sent from the client computing device to a second computing device. The assisted delivery service is initiated in response to the request. The assisted delivery service comprises identifying, at the second computing device, one or more peer computing devices receiving the media content. At the second computing device, instructions that enable the client computing device to discover at least one of the peer computing devices are generated. The instructions are sent from the second computing device to the client computing device. At the client computing device, a peer computing device is discovered. A request to receive a portion of the media content is sent from the client computing device to a discovered peer computing device. The portion of the media content is received at the client computing device from the peer computing device.

Data specifying a first segment of a set of clients and first configuration parameters can be received. The first configuration parameters can specify operation of a first interface. The first interface can be integrated into an application. The first segment, including a first subset of the set of clients, can be determined. A request for initiation of operation can be received from the first interface. The first segment can be determined to include a first client. The first configuration parameters can be transmitted. The first configuration parameters can cause the first client to modify operation of the first interface in response to receiving the transmitted configuration parameters. Related apparatus, systems, techniques and articles are also described.

A computer-implemented method includes sending a broadcast over a network requesting a response from other host computers on the network that are also communicatively paired with the input device, receiving a broadcasted response from a second host computer on the network indicating that it is communicatively paired with the input device, establishing a communicative connection with the second host computer via the network and automatically reestablishing the connection with the second host computer when the second host computer disconnects and reconnects to the network. In response to an edge-detect event, sending a control signal to switch the communicative pairing of the input device from the first host computer to the second host computer.