Abstract: Embodiments of this application provide a cross-chain transaction method and apparatus. The cross-chain transaction method includes determining, by a first node, that a first transaction status of a first transaction is a first status, the first status indicating that consensus verification on the transaction succeeded, the first node maintaining a first blockchain and the first transaction belonging to the first blockchain. The method includes obtaining, by the first node, a second transaction status of a second transaction, a second node maintaining a second blockchain and the second transaction belonging to the second blockchain. The method includes modifying, by the first node, target data, the modifying being based on first transaction data of the first transaction when the second transaction status of the second transaction is the first status, the target data comprising data in a state machine of the first node, the target data being related to the first transaction.

Abstract: A high-definition map building method includes determining a key node describing information about a key position of a lane attribute change, determining a key node layer based on a position of the key node and an attribute of the key node, and determining a high-definition map based on a navigation map and the key node layer. The navigation map provides road-level navigation information, and the high-definition map provides lane-level navigation information.

Abstract: An equalization time configuration method is applied to a processor system in which a Peripheral Component Interconnect Express (PCIe) bus or a Cache Coherent Interconnect for Accelerators (CCIX) bus is used. The equalization time configuration method includes determining a working physical layer (PHY) type of a master chip and a working PHY type of a slave chip, determining an equalization time of the slave chip in a fourth phase of equalization based on the working PHY type of the master chip, and determining an equalization time of the master chip in a third phase of the equalization based on the working PHY type of the slave chip.

Abstract: A blockchain system includes a consensus node and a blockchain management device. The database system includes a database management device. The blockchain management device receives one or more blocks, where each block carries a plurality of pieces of transaction data; and sends a plurality of SQL statements to the database management system, where each SQL statement includes one piece of transaction data, and a block number and a transaction number of the piece of transaction data. The database management system stores the transaction data, and stores a plurality of pieces of attribute information of the transaction data. The database management device returns, to the blockchain management device, a message indicating that the transaction data is stored. The blockchain management device is further configured to verify first transaction data based on a block number and a transaction number of the first transaction data.

Abstract: Embodiments of this application provide a cross-chain transaction method and apparatus. The cross-chain transaction method includes determining, by a first node, that a first transaction status of a first transaction is a first status, the first status indicating that consensus verification on the transaction succeeded, the first node maintaining a first blockchain and the first transaction belonging to the first blockchain. The method includes obtaining, by the first node, a second transaction status of a second transaction, a second node maintaining a second blockchain and the second transaction belonging to the second blockchain. The method includes modifying, by the first node, target data, the modifying being based on first transaction data of the first transaction when the second transaction status of the second transaction is the first status, the target data comprising data in a state machine of the first node, the target data being related to the first transaction.

Abstract: A block data archiving method carried out by a blockchain node is described. The method includes determining to-be-archived block data when detecting that a resource of a block stored in the first blockchain node meets a block data archiving condition. The method further includes sending an archiving request to one or more other blockchain nodes; negotiating a consensus with the blockchain node in the same group based on received consensus response information fed back by the blockchain node in the same group one or more other blockchain nodes; and sending the to-be-archived block data to a third-party storage server for archiving in accordance with determining that a consensus is reached and a consensus result that the first blockchain node is a consensus blockchain node is obtained. The consensus result is used to determine the first blockchain node or any blockchain node in the same group is a consensus blockchain node.

Abstract: A high-definition map building method includes determining a key node describing information about a key position of a lane attribute change, determining a key node layer based on a position of the key node and an attribute of the key node, and determining a high-definition map based on a navigation map and the key node layer. The navigation map provides road-level navigation information, and the high-definition map provides lane-level navigation information.