Abstract: A method, an apparatus, and a system for copyright rights defense detection are provided. The method includes: sending a metadata query request to a copyright handling apparatus; receiving a metadata query response that is sent by the copyright handling apparatus and that includes feature metadata; obtaining a rights-to-be-defended content feature corresponding to the feature metadata from a feature database; sending a license query request to a license processing apparatus; receiving a license query response that is sent by the license processing apparatus and that includes license information; and performing rights defense detection for a copyright based on the obtained rights-to-be-defended content feature and the license information. Rights defense detection can be performed for a copyright by any rights defense detection service apparatus.

Abstract: Embodiments of the present disclosure disclose a copyright authorization management method and system. The method includes: obtaining owner-of-copyright information; sending a contract determining notification to a corresponding owner-of-copyright client based on the owner-of-copyright information, where the contract determining notification carries copyright-related information of a to-be-authorized work; receiving transaction information returned by the owner-of-copyright client, where the transaction information includes contract information determined by an owner of copyright based on the copyright-related information; obtaining a valid contract transaction based on the transaction information, where the valid contract transaction includes signatures satisfying a preset-quantity rule; and implementing persistence of the valid contract transaction in a block chain.

Abstract: The present disclosure relates to a fender with a solar power generation function. The fender includes: a fender body. A, flexible solar cell module fitting with the fender body is fixed on the fender body. The present disclosure not only saves space, but also effectively solves the problem that the solar cell module and its mounting accessories are easily damaged under pressure.

Abstract: A method, an apparatus, and a system for copyright rights defense detection are provided. The method includes: sending a metadata query request to a copyright handling apparatus; receiving a metadata query response that is sent by the copyright handling apparatus and that includes feature metadata; obtaining a rights-to-be-defended content feature corresponding to the feature metadata from a feature database; sending a license query request to a license processing apparatus; receiving a license query response that is sent by the license processing apparatus and that includes license information; and performing rights defense detection for a copyright based on the obtained rights-to-be-defended content feature and the license information. Rights defense detection can be performed for a copyright by any rights defense detection service apparatus.

Abstract: Disclosed are a solar cell panel and a bicycle. The solar cell panel includes output busbars and a plurality of solar cell groups connected in parallel between the output busbars. Each of the solar cell groups includes a plurality of solar cell strings connected in series, and each of the solar cell strings includes a plurality of solar cells connected in series.

Abstract: The present disclosure discloses a multifunctional backpack including a backpack main body and a strap. The multifunctional backpack further includes: a controller; and a solar panel, a cooling unit, a heating unit and a power storage module, which are electrically connected with the controller, respectively. The cooling unit, the heating unit and the solar panel are also electrically connected with the power storage module, respectively. The solar panel is detachably mounted on a front side of the backpack main body. The power storage module is detachably mounted inside the backpack main body. The cooling unit and the heating unit are respectively mounted on a back side of the backpack main body and/or on the strap. A peripheral interface is also provided on the backpack main body, the peripheral interface is electrically connected with the power storage module and/or the solar panel.

Abstract: Embodiments provide a method and a system for distributing digital content. The method includes: receiving, by a content apparatus, a download request sent by a download client; determining based on the upload transaction identity and the license transaction identity, whether the download client has permission information of downloading the content file; if yes, sending the content file to the download client; after the content file has been distributed, sending a download transaction request to a content transaction processing apparatus; receiving, by the content transaction processing apparatus, the download transaction request, determining that the download information is valid, generating and sending a download transaction to a block chain processing apparatus; and adding the download transaction to a block chain. The content apparatus sends the content file only to the download client that has a download qualification, thereby restricting a distribution range of the content file.

Abstract: A digital content copyright management method includes: receiving a copyright processing request, and constructing a copyright management transaction according to the copyright processing request; and storing the copyright management transaction in a blockchain for processing, where the blockchain is stored in all blockchain apparatuses. Trusted and secure processing of the copyright management transaction can be implemented.

Abstract: Embodiments of the present disclosure disclose a copyright authorization management method and system. The method includes: obtaining owner-of-copyright information; sending a contract determining notification to a corresponding owner-of-copyright client based on the owner-of-copyright information, where the contract determining notification carries copyright-related information of a to-be-authorized work; receiving transaction information returned by the owner-of-copyright client, where the transaction information includes contract information determined by an owner of copyright based on the copyright-related information; obtaining a valid contract transaction based on the transaction information, where the valid contract transaction includes signatures satisfying a preset-quantity rule; and implementing persistence of the valid contract transaction in a block chain.