A method of propagating data packets in a network of nodes is disclosed. The method, implemented at one of the nodes, includes: generating at least one data packet of a first type; collecting a set of data packets of the first type during a first time period, the set including the at least one generated data packet and at least one data packet of the first type received from one or more first nodes in the network; and for each data packet in the set: randomly select two or more neighbouring nodes connected to said one of the nodes; transmit, to each of the two or more selected neighbouring nodes: the data packet, wherein the two or more selected neighbouring nodes are configured to relay the data packet to one or more second nodes in the network using a mode of data propagation that is arbitrarily selected for that neighbouring node. The invention is particularly suited for implementation on a blockchain network such as, for example, the Bitcoin blockchain.

Copies of a distributed ledger with multiple blocks are stored on multiple computing devices and a secure server that stores a plurality of authenticated digital media asset. A first computing device with an authenticated digital media asset generates a new block to the distributed ledger, and each subsequent computing devices with modifications made to the digital media asset adds a new block identifying modification made to the digital media asset and appends a hash of at least a portion of a previous block of the distributed ledger.

The present disclosure belongs to the field of data transmission, and provides method, device and system for downloading data blocks of resource files. The method includes: when a target peer needs to download a target resource file, the target peer notifies a tracker server of a file size and a URL of the target resource; the tracker server forwards the file size and the URL to super peers preset in a P2P network to notify the super peers to prepare data blocks of the target resource file meeting the file size and the URL; after the super peer is ready, the tracker server recommends the super peer to the target peer in a form of a peer list; furthermore, the target peer downloads the data blocks of the target resource file from the super peer. With technical solutions of the present disclosure, validity of the resource file downloaded by the target peer may be guaranteed.

A system designed for increasing network communication speed for users, while lowering network congestion for content owners and ISPs. The system employs network elements including an acceleration server, clients, agents, and peers, where communication requests generated by applications are intercepted by the client on the same machine. The IP address of the server in the communication request is transmitted to the acceleration server, which provides a list of agents to use for this IP address. The communication request is sent to the agents. One or more of the agents respond with a list of peers that have previously seen some or all of the content which is the response to this request (after checking whether this data is still valid). The client then downloads the data from these peers in parts and in parallel, thereby speeding up the Web transfer, releasing congestion from the Web by fetching the information from multiple sources, and relieving traffic from Web servers by offloading the data transfers from them to nearby peers.

Aspects of the present disclosure involve a system and a method for performing operations comprising: storing, on a distributed storage system, a front-end (FE) instance and a plurality of real-time graph (RTG) instances, each of the plurality of RTG instances includes a plurality of device objects, the FE instance being configured to communicate with a client device associated with a first user; establishing a bi-directional streaming remote procedure call (RPC) connection between the FE instance and the plurality of RTG instances; receiving, by the FE instance, a status update from the client device; determining, by the FE instance, that a first device object corresponding to the client device is stored on a first RTG instance of the plurality of RTG instances; and transmitting a first message comprising the status update from the FE instance to the first RTG instance to update the first device object.

In some embodiments, a distributed computer network has a server node, a leader node, and a plurality of participant nodes that communicate via a communications network. During a first phase, the leader node generates a leader performance, each participant node receives and renders the leader performance and generates a corresponding participant performance, and the server node receives the leader performance and the participant performances and generates one or more group performances, each including multiple, synchronized performances. During a second phase, the server node transmits the one or more group performances to the participant nodes, and each participant node receives and renders a group performance, thereby allowing a corresponding participant at each participant node to perform along with the rendering of the corresponding group performance. In some implementations, the server node generates different partial group performances, where each participant node receives a partial group performance that excludes the corresponding participant performance.

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 method at a first node for encoding a message for secure transmission to a second node comprising. The method includes receiving the message for transmission to the second node and fragmenting the message into a plurality of fragments, wherein each fragment is of a selected size. The method further includes encoding separately each fragment of the plurality of fragments using Datagram Transport Layer Security (DTLS), combining DTLS encoded fragments into a Stream Control Transmission Protocol (SCTP) message, and transmitting the message as a plurality of DTLS encoded fragments in the SCTP message to the second node.

A blockchain-enabled cloud-based service mesh environment including a network service mesh network that includes network service domains that communicate with each other and an application service mesh network positioned in communication with the network service mesh network, the application service mesh network including applications that communicate with each other and a network service domain. A plurality of smart contracts record information including resource assignment and consumption information from the network service mesh network and the application service mesh network are recorded to a blockchain network.

Disclosed herein a method for configuration of semi-managed DHT based on NDN and system therefor. The method includes: managing and sharing manager nodes based on global information; generating a sub-range segment by partitioning a keyspace area, according to each group of the data peer nodes; managing the sub-range segment by distributing the sub-range segment corresponding to each group to data peer nodes of the each group; checking and analyzing liveness of the data peer node in the each group; estimating availability of the data peer nodes by predicting lifetime of data peer nodes through the checking and analyzing of liveliness; performing risk factor prediction that estimates data availability and sub-range management overhead; and performing a sub-range management decision at each of the manager nodes based on a result of the risk factor prediction, and performing a global stabilization decision required for global system stabilization.