Abstract: The blockchain smart contract is a program running mode that utilizes blockchain technology to achieve "automatic execution" of contracts. Due to the decentralized, traceable, programmable, and immutable nature of blockchain technology, blockchain smart contracts possess technical advantages in providing strong certification and security to networks. Based on the social characteristics of financial lending disputes, it may be more efficient to resolve large-scale, small amount, and simpler legal relationship financial lending disputes by reasonably embedding blockchain smart contracts into the network's strong certification process. Therefore, it is necessary to start from the core procedures of enforced online notary service, effectively connecting the "debt document certification phase" and the "application for enforcement phase", exploring the embedding mechanism of blockchain smart contracts, constructing a legal, compliant, and reasonable paradigm of integrating the smart contracts with online notarization, and being cautious of single technology self-certification driven by technological determinism, achieving dual assurance of blockchain smart contract technological self-certification and national credit certification.