Do you mean integrate with your internal approval system?

FreeLink/甫连信息
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Expertise in DocuSign integrations with on-premises systems for leading enterprises across various industries
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Yes, I would like to create an approval flow through a certificate validated by ICP Brasil.

You can find the TSP in Brazil which validated by ICP Brasil is Safeweb:

https://support.docusign.com/s/document-item?language=en_US&bundleId=xww1594245808169&topicId=ecs1617724874770.html&_LANG=enus

 After you add SafeID in Signature Type of Docusign Admin console, then you can select the Signature type as SafeID.

Docusign also support Signer-Held Digital Certificates:

https://support.docusign.com/s/document-item?language=en_US&bundleId=yca1573855023892&topicId=lpb1607560293943.html&_LANG=enus

You can find the CA from: 

https://estrutura.iti.gov.br/

FreeLink/甫连信息
DocuSign Partner | Partner Profile
The only DocuSign Partner globally certified as both a Certified eSignature Administrator and eSignature Technical Consultant
DocuSign 2024 APAC Reseller Growth Partner of the Year
Ranked #1 in the OG All Star category in DocuSign Community Wrapped 2024
DocuSign Community Leaderboard Top 5 contributor
Expertise in DocuSign integrations with on-premises systems for leading enterprises across various industries
 Connect with me on LinkedIn: https://www.linkedin.com/in/gehengfeng/