Abstract: In interpreting a data record in a blockchain of a certain cryptographic asset, it is usually necessary to use the API of the node software provided by the developer of the software that devises the implementation method. However, since an input/output method of the API also differs depending on the implementation method, it is difficult to collect and analyze blockchain data of cryptographic assets according to a plurality of different implementation methods. The present invention provides a cryptographic asset blockchain processing apparatus or the like that collects blockchain data generated by a plurality of different implementation methods, converts the data into data that can be analyzed, and processes a transaction content such as a quantity, a unit price, and a partner of a transaction cryptographic asset into a standardized format, thereby improving convenience of analysis of a large amount of data for an accounting audit or the like.

Abstract: A system is provided that includes a blockchain computer system, an issuer computer system, and a verifier computer system. Different nodes of the blockchain computer system are associated with the issuer and verifier computer systems. The issuer computer system and the node of the blockchain computer system associated therewith generate and submit blockchain transactions that contain data for aircraft personnel certifications. The aircraft personnel certifications are stored on the blockchain and may be later retrieved by the verifier computer system and its associated node of the blockchain computer system. Accordingly, the certifications of aircraft personnel can be maintained and verified. The system ensures the digital certifications are authentic and have not been tampered with.