Content distribution system, content distribution method, content generation apparatus, and content generation program

摘要

PROBLEM TO BE SOLVED: To guarantee a content's integrity after its generation time.SOLUTION: A content distribution system, at the time of generating a content, acquires a hash value of the content and meta data accompanying the content to register the hash value and meta data to a block chain, which systematically guarantees that no processing is performed by a generating person until distribution after the time of generating the content to secure the content's integrity from the time of generating the content to the time of the distribution. Registration of the hash value and metadata to the block chain eliminates centralized management. Not only meta data generated by a content generation device 1 but also an analysis result obtained using analysis by another content management analysis server 2 are registered to the block chain using the hash value of the content as a key. Thereby, reliability of contents of data generated in various processes can be secured.SELECTED DRAWING: Figure 1