The invention discloses a block chain customizable
system which comprises a base layer, a core layer, an
adaptation layer and a management layer. The base layer realizes customized block chain communication service and storage service, including customized block chain node networking, realizes transmission and synchronization of message data, broadcasts and stores block chain data and
business data; the core layer realizes a
consensus service and a contract service of the customized block chain, the
consensus service is used for
consensus agreement of the block, and the contract service is used for analysis execution of
business logic of the customized block chain; the core layer is connected with the base layer and is used for receiving and
processing data of the base layer, and the data generated by the core layer is transmitted and stored through the base layer; the
adaptation layer is used for realizing
middleware extension and
functional interface packaging; the management layer carries out visual operation and
maintenance management on the base layer and the core layer through a
functional interface; and according to the invention, function customization of network, storage, consensus, contract and
middleware is realized in the
system, and customization demands of business clients are realized through the management layer and the
adaptation layer.