Abstract: An apparatus for an Internet of Things (IoT) device registry is provided. The apparatus includes an Internet of Things Universal Identification (IoT UID) processing circuit, a record management circuit, and a record provisioning circuit. The IoT UID processing circuit is structured to interpret an IoT UID and device property data. The record management circuit is structured to associate the IoT UID with the device property data via a record. The record provisioning circuit is structured to transmit the record. In embodiments, the device property data includes an owner identifier value, a manufacturer identifier value, a trusted platform module key, a media access control address, a software version identifier, and/or or a firmware identifier.

Abstract: A system including a telecommunications identifier database and a controller. The telecommunications identifier database includes a plurality of records that each match a corresponding managing entity to a plurality of corresponding telecommunications identifiers registered to the corresponding managing entity.

Abstract: In a transaction method, transaction information is obtained. The transaction information includes a type identifier and quantity of first assets, and a type identifier and quantity of second assets. Transaction records, corresponding to a transaction in a block, are stored upon verification of the transaction information. The transaction records include first and second transaction records. The first transaction record includes first input and output items corresponding to the first assets, and the first input and output items each includes the type identifier of the first assets. The second transaction record includes second input and output items corresponding to the second assets, and the second input and output items each includes the type identifier of the second assets. The block is broadcasted to other nodes in the blockchain network, and verification results are received. The block is added to a blockchain of a current node based on the verification results.

Abstract: A method for embedding an Internet of Things Universal Identifier (IoT UID) into one or more Greenfield devices is provided. The method includes manufacturing one or more Greenfield devices, and generating device property data based at least in part on the one or more Greenfield devices. The method further includes transmitting, to an Internet of Things (IoT) device registrar server, a registration request that includes the device property data. The method further includes interpreting one or more Internet of Things Universal Identifiers (IoT UIDs) generated in response to the transmitting of the registration request. The method further includes embedding the one or more IoT UIDs in the one or more Greenfield devices.

Abstract: A method for publishing a smart contract includes: generating a version number index value according to a contract name of the smart contract, and searching for an associated target contract version number from a blockchain network according to the version number index value; generating a contract index value according to a contract version number of the smart contract and the contract name, in response to determining that the contract version number of the smart contract is greater than the target contract version number; associating the contract index value with the smart contract and associating the version number index value with the contract version number of the smart contract, to generate transaction information; and publishing the transaction information to the blockchain network, to publish the smart contract to the blockchain network.

Abstract: A method including: interpreting, via a device registration request circuit, a registration request that maps device property data to one or more Brownfield devices; generating, via an Internet of Things Universal Identification (IoT UID) generation circuit, based at least in part on the registration request, an IoT UID for each of the one or more Brownfield devices; and transmitting, via an IoT UID provisioning circuit, the IoT UID for each of the one or more Brownfield devices.

Abstract: A data processing method and apparatus based on a node internal memory, a device and a computer readable storage medium are provided. The method includes: acquiring a data reading contract associated with a transaction in a first block from a chain reading cache of the node internal memory; invoking the data reading contract to acquire a write cache mapping table associated with the first block, and determining target read data associated with the transaction based on a first block cache of the first block in the write cache mapping table; and executing the transaction based on the target read data, storing target cached data, corresponding to a result of executing of the transaction, to the first block cache, and writing the first block into a bifurcated blockchain.

Abstract: A method for registering one or more Greenfield devices via a virtual Internet of Things Universal Identifier (IoT UID) is provided. The method includes identifying one or more Brownfield devices, generating device property data based at least in part on the one or more Brownfield devices, and transmitting, to an IoT device registrar server, a registration request that includes the device property data. The method further includes interpreting one or more IoT UIDs generated in response to the transmitting of the registration request.

Abstract: An apparatus including a device property data processing circuit, a change detection circuit, an alert circuit, and an alert provisioning circuit. The device property data processing circuit is structured to at a first time, interpret, device property data corresponding to a device registered with an IoT device registry, and at a second time, interpret, the device property data corresponding to the device registered with the IoT device registry. The change detection circuit is structured to detect a change in the device property data between the first time and the second time. The alert circuit is structured to generate, responsive to the detected change, a message that identifies the device corresponding to the device property data. The alert provisioning circuit is structured to transmit the message.

Abstract: An apparatus for an Internet of Things (IoT) device registry is provided. The apparatus includes an Internet of Things Universal Identification (IoT UID) processing circuit, a record management circuit, and a record provisioning circuit. The IoT UID processing circuit is structured to interpret an IoT UID and device property data. The record management circuit is structured to associate the IoT UID with the device property data via a record. The record provisioning circuit is structured to transmit the record. In embodiments, the device property data includes an owner identifier value, a manufacturer identifier value, a trusted platform module key, a media access control address, a software version identifier, and/or or a firmware identifier.

Abstract: This application provide a data management method performed at a blockchain system. The system includes an accounting node sub-network and a service node sub-network. The method includes: generating a first data block in the accounting node sub-network; adding first key information to a block header of the first data block; adding signature corresponding to the first data block to the block header of the first data block; and releasing the block header of the first data block to the service node sub-network. The service node sub-network is configured to verify the signature comprised in the block header of the first data block, and obtain the first key information after a successful verification.

Abstract: A data processing method and apparatus based on a node internal memory, a device and a computer readable storage medium are provided. The method includes: acquiring a data reading contract associated with a transaction in a first block from a chain reading cache of the node internal memory; invoking the data reading contract to acquire a write cache mapping table associated with the first block, and determining target read data associated with the transaction based on a first block cache of the first block in the write cache mapping table; and executing the transaction based on the target read data, storing target cached data, corresponding to a result of executing of the transaction, to the first block cache, and writing the first block into a bifurcated blockchain.

Abstract: Embodiments of this disclosure disclose a data processing method and apparatus, a device, and a storage medium. The method includes: after receiving a block synchronization request carrying a target block height transmitted by a first service node, transmitting a compact block identification and the block synchronization request to a consensus node; the compact block identification being used for instructing the consensus node to determine structural information of a compact block corresponding to a block to be synchronized; searching for a local transaction identifier matching a target transaction identifier in a first relay cache; and in the first relay cache, taking local transaction data corresponding to the found local transaction identifier as first key transaction data, and performing data clearing on the first key transaction data successfully synchronized to the first service node.

Abstract: A method for electing a representative node device performed by a first node device in a blockchain system includes: broadcasting candidate addition transaction data in the blockchain system, the candidate addition transaction data carrying credential data, the credential data being received from a target server and indicating that a first node device meets a qualification requirement for a candidate node device; storing the candidate addition transaction data on a target blockchain of a blockchain system when a plurality of node devices in the blockchain system verify the candidate addition transaction data by consensus; and participating in an election of the representative node device according to the candidate addition transaction data stored on the target blockchain.

Abstract: An apparatus for detecting fraudulent activity includes a device property data processing circuit, a security analysis circuit, an alert circuit, and an alert provisioning circuit. The device property data processing circuit is structured to interpret device property data corresponding to a device registered with an Internet of Things (IoT) device registry. The security analysis circuit is structured to determine, based at least in part on the device property data, that the device is subject to a fraud event. The alert circuit is structured to generate, responsive to the determined fraud event, a message that identifies the device. The alert provisioning circuit is structured to transmit the message.

Abstract: A data processing method includes: detecting, when writing first block data into a local cache and a local storage, a first block processing space of a storage buffer pool; writing, when a number of block data to be stored does not reach a buffer block processing threshold, the first block data into the storage buffer pool based on N block data to be stored; detecting a second block processing space of a storage processing pool; and determining, when a number of block data to be fed back does not reach a feedback block processing threshold, block data to be merged for overlap detection with the block data to be fed back in the storage buffer pool based on the number of the block data to be fed back and the feedback block processing threshold, and writing the data retained after overlap detection to a distributed database.

Abstract: An apparatus for detecting fraudulent activity includes a device property data processing circuit, a security analysis circuit, an alert circuit, and an alert provisioning circuit. The device property data processing circuit is structured to interpret device property data corresponding to a device registered with an Internet of Things (IoT) device registry. The security analysis circuit is structured to determine, based at least in part on the device property data, that the device is subject to a fraud event. The alert circuit is structured to generate, responsive to the determined fraud event, a message that identifies the device. The alert provisioning circuit is structured to transmit the message.

Abstract: Aspects of the disclosure are directed to a method for use on a blockchain network that includes an accounting node subnetwork having accounting nodes configured to record a data block onto a blockchain and a service node having service nodes configured to verify data blocks recorded by the accounting nodes onto the blockchain. The method can include generating a signature based on transaction information to be included in a data block to be added onto the blockchain by using a key specific to the accounting node. The method can further include adding the transaction information and the generated signature to the data block and adding the data block onto the blockchain, and transmitting the signature to the service nodes in the service node subnetwork, so that the service nodes perform signature verification on the signature based on the key specific to the accounting node.

Abstract: A method for determining a trust indicator is provided. The method may include interpreting, via an Internet of Things Universal Identifier (IoT UID) processing circuit, an IoT UID corresponding to a device and identifying, via a record management circuit and based at least in part on the IoT UID, a record in a database corresponding to the device. The method may further include determining, via a trust analysis circuit and based at least in part on the record, a risk indicator of the device and transmitting, via an indicator provisioning circuit, the risk indicator.

Abstract: Data routing with a forwarding process of service data can avoid problems of offline nodes. The forwarding process for data routing can also improve the fault tolerance and service data can be quickly transmitted to a corresponding data pool. Using consensus nodes and a target data pool with routing and forwarding tables along with subtrees from a trie tree can improve the routing. Subtrees may be obtained by splitting the trie tree from a root node by using a first leaf node as a benchmark, which correspondingly represents a data pool of the consensus node. The routing and forwarding table is configured to record addresses of data pools correspondingly represented by a preset quantity of leaf nodes in a corresponding subtree.