In recent years, the pace of "Internet+government services" has been accelerating, and vigorously promoting digital applications has become the goal and direction of opening up the "last mile" of digitalization of government services.

In terms of smart government affairs, the "14 th Five-Year Plan" proposes: promoting one-stop operation of government affairs services, and promoting the application of electronic contracts and electronic signatures; Promote technological innovations in blockchain such as smart contracts, * * algorithms, encryption algorithms and distributed systems, develop applications in areas such as government services with the focus on alliance chains, and improve the supervision mechanism.

With the deepening of digital development, both the government and enterprises are facing the problem of digital construction and transformation, and electronic seal and electronic signature are important application tools for digital construction and transformation, which play a very important role in improving the service and operation efficiency of the government and enterprises. But the electronic seal, like the physical seal, will face the problems that the data has been tampered with and the information is difficult to identify with each other. The emergence of blockchain technology has just effectively solved this problem.

The characteristics of blockchain, such as "decentralization, non-tampering, and full traceability", are in natural harmony with electronic signatures, and play an important role in promoting government data enjoyment, optimizing business processes, reducing operating costs, improving collaborative efficiency, and building a trusted system.

With the in-depth development of "Internet+government services", the efficiency of government services has been greatly improved, but there are still many pain points that affect online services.

For the masses and enterprises, after applying for services online, they still need to print paper materials and build official seals, and then submit them to the service hall, in order to truly complete the business declaration, and they may have to run errands back and forth during the period. For government workers, on the one hand, it is difficult to verify the identity of the online business applicant in the process of online business, and there are doubts about how to confirm the identity of the parties and whether the confirmed operation is the intention of the parties themselves. On the other hand, in the application work, it is necessary not only to complete the audit of the application materials, but also to archive a large number of application materials.

These complicated and time-consuming declaration processes not only seriously reduce the overall efficiency, but also greatly increase the declaration costs of the government and enterprises, such as the transportation costs of the masses and enterprises, the paper costs of materials and the manpower, time, management and storage costs of government staff.

The electronic seal filing authentication platform of pyramid blockchain provides electronic seal filing for online electronic signing. When verifying the validity of signature documents, the electronic seal filing authentication platform performs algorithm verification and signature traceability on electronic seals, supports authorization and control of various seals, and manages, authorizes and checks the use of seals anytime and anywhere.

Electronic official seal is based on asymmetric key encryption technology to realize signature and verification. Pyramid blockchain technology is adopted to ensure the credibility and traceability of signature data, ensure the authenticity and credibility of signature documents, and solve the problem of seal theft and fraudulent use.

Through the real-name authentication of legal person, binding the legal person's identity, and combining the platform with the legal person's identity authentication, the electronic official seal is generated and recorded, which eliminates the hidden danger of tampering or pollution of the original evidence chain from the technical source, and constructs a complete original evidence chain information, which is convenient for storage and proof.