Blockchain evidence refers to the blockchainization of existing legal evidence,which specifically includes electronic data generated,stored,verified,and transformed from the original blockchain.From the perspec-tive of the entire lifecycle,blockchain evidence is always in the process of generation,collection,preserva-tion,presentation,and application.However,its authenticity is guaranteed to varying degrees during the pre-trial fixed stage,trial display stage,and post-trial confirmation stage.The systematic reasons for the virtual-ization of the entire process of ensuring the authenticity of blockchain evidence are mainly due to the technical limitations of blockchain evidence,the lack of ability of litigation participants to handle blockchain evidence,and the insufficient effectiveness of blockchain evidence authenticity rules.To this end,we can strengthen the substantive guarantee of the authenticity of blockchain evidence by standardizing the blockchain evidence plat-form,improving the cross-examination procedures of blockchain evidence,and improving the review and rec-ognition rules of blockchain evidence.