1. The contract lock is designed and developed in full compliance with relevant national laws and regulations, ensuring the legitimate rights and interests of all users. The contract lock is strictly designed and developed in accordance with laws and regulations such as the Civil Code of the People's Republic of China, the Electronic Signature Law of the People's Republic of China, the Electronic Commerce Agreement, the Service Standards for Third Party E-commerce Trading Platforms, and the Interim Measures for the Management of Online Commodity Trading and Related Service Behaviors, ensuring that all documents signed through the contract lock are legal and valid; All data files are securely and compliantly stored. 2. Contract Lock collaborates with multiple national CA centers to provide users with professional digital certificate services. Contract Lock adopts a dynamic selection scheme for digital certificates and collaborates with national digital certificate issuing agencies, including CFCA, Beijing CA, and Shanghai CA, to continuously provide users with stable and authoritative digital certificate services.

3. Record the contract signing process in detail, create a log for downloading and viewing, and provide third-party evidence services.

From registration and authentication to contract initiation and each signing, the contract lock process records the user's contract signing behavior log. Users can easily view the signing platform, signing party, signature information, signing time, digital certificate issuing authority, timestamp and other information. They can download contract and log files to verify the validity of the signing process and results. 4. Joint notary office, judicial appraisal center, law firm, and arbitration commission to provide users with more comprehensive notary and judicial services. Contract Lock has partnered with Shanghai Oriental Notary Office and East China Political and Legal Judicial Appraisal Center; Cooperate with multiple well-known law firms in China; Pre embedded arbitration clauses, in collaboration with the Shanghai Arbitration Commission as the arbitration institution for resolving disputes, provide additional services to users. How does a contract lock provide a reliable electronic signature and electronic evidence chain? According to Article 13 of the Electronic Signature Law of the People's Republic of China, four provisions are proposed for reliable electronic signatures. Contract locks adopt a series of electronic signature and document encryption technologies to ensure the provision of users with complete and reliable electronic signatures and electronic evidence chains. After registering for the contract lock, users need to undergo personal real name authentication and enterprise identity authentication. After authentication, the authoritative digital certificate issuing center will issue a digital certificate to the user, ensuring that the electronic signature is exclusive to the user; By using the user account and password, as well as the dynamic SMS/email verification code for dual password confirmation, it can be ensured that the user's signature operation is only controlled by themselves, ensuring the user's willingness to sign; Through the United Nations authoritative CA center, a one-time event type certificate is issued for the combination of signed documents, signatories, and seal appearance during the signing process. Through timestamp and file double encryption technology, and hash operation, the hash fingerprint of the final signed document is stored in the notary office for verification, ensuring that any tampering with the document can be detected and providing fast certification services. What are the national laws and regulations that contract locks comply with? The contract lock is designed and developed in full compliance with national laws and regulations for electronic signing services, ensuring that all electronic documents signed through the contract lock have the same legal effect as paper signing documents.

(1) National People's Congress: Civil Code of the People's Republic of China (2020);

(2) National People's Congress: Electronic Signature Law of the People's Republic of China (2004);

(3) Office of the National Archives Administration: "Guidelines for the Construction of Enterprise Digital Archives" (2020);

(4) Ministry of Commerce: "Guiding Opinions of the Ministry of Commerce on Online Transactions (Provisional)" (2007);

(5) State Administration for Industry and Commerce: Interim Measures for the Administration of Online Commodity Trading and Related Service Behavior (2010);

(6) Ministry of Commerce: "Service Standards for Third Party E-commerce Trading Platforms" (2011);

(7) National standard: "E-commerce Model Standard" (SB/T10518-2009);

(8) National standard: "Network Transaction Service Standard" (SB/T10519-2009);

(9) National standard: "Standard for Electronic Trading of Bulk Commodities" (GB/T18769-2003);

(10) National standard: "Electronic Commerce Protocol" (GB/T19252-2003); (11) Ministry of Industry and Information Technology: "Management Measures for Electronic Authentication Services" (2009);

(12) Ministry of Industry and Information Technology: Measures for the Administration of Internet Information Services (2000); (13) Ministry of Public Security and others: "Management Measures for Information Security Level Protection" (2007). How are the legal effects of electronic contracts regulated by national laws and regulations? Article 143 of the Civil Code: Civil legal acts that meet the following conditions are valid: (1) The actor has the corresponding capacity for civil conduct;

(2) means true; (3) Do not violate mandatory provisions of laws and administrative regulations, and do not violate public order and good customs. The contract signed in this way is a legal and valid contract. Article 469 of the Civil Code of the People's Republic of China: Parties may enter into a contract in writing, orally, or in any other form. Written form refers to the tangible representation of the content contained in contracts, letters, telegrams, telegrams, faxes, and other forms. A data message that can be tangibly expressed through electronic data interchange, email, or other means and can be accessed and used at any time is considered in written form.

Articles 13 and 14 of the Electronic Signature Law of the People's Republic of China clearly define what an electronic signature is, and that electronic signatures have the same legal effect as traditional handwritten signatures and seals. Article 13 stipulates: "An electronic signature is considered reliable if it meets all of the following conditions: 1) When the data used to create the electronic signature is proprietary to the electronic signer; 2) The data used to create the electronic signature at the time of signing is only controlled by the electronic signer; 3) Any changes to the electronic signature after signing can be discovered; 4) Any changes to the content and form of the data message after signing can be discovered. The parties may also choose to use an electronic signature that meets their agreed reliable conditions. Article 14 stipulates that a reliable electronic signature has the same legal effect as a handwritten signature or seal. This law grants electronic signatures the same legal effect as traditional handwritten signatures and seals.>>《 The Electronic Signature Law of the People's Republic of China came into effect on August 28, 2004 and April 1, 2005. The Contract Lock Cloud Service Platform complies with the technical specifications for electronic signatures in the Electronic Signature Law of the People's Republic of China, integrates the digital certificate authentication system of major third-party CA institutions in China, and is a reliable electronic signature authentication and application service platform.

8、 Contract lock provides real identity authentication for individual/enterprise users, ensuring the authenticity and reliability of the signing party's identity. (1) Personal user authentication: Provide real identity cards, mobile phone numbers, bank cards, and instant cameras to verify the user's identity. Contract lock ensures the authenticity and validity of personal information through integration with the Citizen Network Identity Recognition System (eID) of the Ministry of Public Security, realizing real name authentication function and ensuring that the signer cannot deny it.

(2) Enterprise identity authentication:

Provide business license, tax registration certificate, legal person ID card, legal person authorization letter, and agent ID card, all of which are integrated with the relevant identification systems of industry and commerce and public security, so that every enterprise identity signed on the contract lock is authentic and reliable, ensuring legal effectiveness.

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9、 Individual or enterprise users can use their own digital certificates and obtain digital certificate issuance and authentication through contract locks. Contract locks are jointly recognized by national digital certificate issuance and authentication centers, providing legally protected digital certificate application and identity authentication services. For enterprises and individuals who do not yet have digital certificates, they can obtain digital certificates through contract lock authentication; Enterprises and individuals who already have digital certificates can continue to use them on contract locks by connecting with relevant certification centers.

10、 Contract Lock collaborates with authoritative notary offices to store the hash fingerprints of contracts and signing processes completed by users, facilitating quick notarization and certification. Contract Lock collaborates with domestic authoritative notary offices to notarize the entire signing process and contracts of all parties on the Contract Lock platform, ensuring that contracts signed on the Contract Lock platform have legal effect and protecting the legitimate rights and interests of the contracting parties. In addition, by collaborating with international electronic evidence certification agencies, we provide valid legal evidence at the national notary level for every electronic contract signed on the contract lock.

11、 A nationally renowned law firm provides legal aid. Over a hundred cities across the country have partnered law firms to offer legal services to clients.

12、 Connecting with global standards to help you internationalize, the global business community has adopted electronic signatures as a business solution. However, many industries and regions require digital signatures to comply with local standards. Digital signature technology is a technology based on open standards, including Public Key Infrastructure and PKI standards. The contract lock digital signature solution can help you meet legal requirements in various regions. The PKI standard for electronic signatures based on standards is a widely accepted technical standard that incorporates encryption technology into the signing process. Implementing electronic signing through contract locks ensures that any tampered document can be detected and verified by any application with electronic signature capabilities. Trusted by different regions and industries: Electronic signatures have been widely recognized as a legitimate method of document signing. In the European continent, Latin America, and Asia, digital signatures are considered a preferred and trustworthy electronic signature technology. The adoption of contract lock digital signature solutions in these regions and industries often means that they can be more quickly accepted by your partners and customers.