Abstract: A chain structure address generation method, a transaction data processing method, an apparatus, and a storage medium. The chain structure address generation method comprises: determining a unique identifier of a first main body; generating an address, the address comprising the type of the address and the unique identifier of the first main body, and the address being used when the first main body participates in transaction, such that a TXO transaction data chain generated by the first main body is logically isolated from TXO transaction data chains generated by other main bodies. The transaction data processing method comprises: merging a TXO transaction data chain generated by a first main body and TXO transaction data chains generated by other member main bodies, which belong to a same consortium blockchain with the first main body, to form TXO transaction data chain of the consortium blockchain.

Abstract: Methods and apparatuses for watermark embedding and extracting are provided. A method for watermark extracting includes obtaining a carrier object embedded with a watermark image; determining at least one encoding region that includes watermark information; determining a plurality of template lattices from the at least one encoding region, the plurality of template lattices comprising a plurality of positioning template lattices and one or more encoding template lattices; and obtaining the watermark information according to the plurality of template lattices.

Abstract: Methods and apparatuses for watermark embedding and extracting are provided. A method for watermark extracting includes obtaining a carrier object embedded with a watermark image; determining at least one encoding region that includes watermark information; determining a plurality of template lattices from the at least one encoding region, the plurality of template lattices comprising a plurality of positioning template lattices and one or more encoding template lattices; and obtaining the watermark information according to the plurality of template lattices.

Abstract: A blockchain system and a data processing method for a blockchain system are disclosed. The blockchain system includes: a regulatory terminal and a transaction terminal. The regulatory terminal is configured to issue an ID key of the transaction terminal according to an ID of the transaction terminal, and operate on privacy data of the transaction terminal based on the ID key of the transaction terminal. The ID of the transaction terminal is an account address. The transaction terminal is configured to operate on local privacy data according to the ID key of the transaction terminal issued by the regulatory terminal. As such, the privacy protection over the blockchain system is effectively realized and the security is improved.

Abstract: Methods and apparatuses for watermark embedding and extracting are provided. A method for watermark embedding includes obtaining a carrier object and watermark information to be embedded in the carrier object; generating at least one encoding region including the watermark information according to the watermark information, the at least one encoding region including a plurality of template lattices; obtaining a watermark image according to the at least one encoding region; and embedding the watermark image in the carrier object.

Abstract: Embodiments of the present application provide a block chain data processing method, a management end, a user end, a conversion apparatus, and a storage medium. The block chain data processing method includes: writing transaction data into block data of a first chain system after the transaction data is verified to be passed and performed with an endorsement signature, the block data of the first chain system is written into block data of a second chain system, the block data of the second chain system is sequentially composed of one or more block data of the first chain system, and a state of any account on the first chain system is consistent with a state of the account on the second chain system.

Abstract: Methods and apparatuses for watermark embedding and extracting are provided. A method for watermark embedding includes obtaining a carrier object and watermark information to be embedded in the carrier object; generating at least one encoding region including the watermark information according to the watermark information, the at least one encoding region including a plurality of template lattices; obtaining a watermark image according to the at least one encoding region; and embedding the watermark image in the carrier object.

Abstract: A communication method, system, and a data processing method are provided. The system includes the following. A first client terminal is configured to generate a carrier object carrying hidden information. A second client terminal is configured to receive the carrier object from the first client terminal and parse the carrier object to obtain relevant information of the hidden information and obtain valid identification information according to feedback information fed back by a third client terminal. The third client terminal is configured to receive the relevant information from the second client terminal and send the feedback information to the second client terminal according to the relevant information.

Abstract: A blockchain system and a data processing method for a blockchain system are disclosed. The blockchain system includes: a regulatory terminal and a transaction terminal. The regulatory terminal is configured to issue an ID key of the transaction terminal according to an ID of the transaction terminal, and operate on privacy data of the transaction terminal based on the ID key of the transaction terminal. The ID of the transaction terminal is an account address. The transaction terminal is configured to operate on local privacy data according to the ID key of the transaction terminal issued by the regulatory terminal. As such, the privacy protection over the blockchain system is effectively realized and the security is improved.