Blockchain Identity Certificates for Anonymous Tax-Compliant Transactions
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Solution Overview
Problem
Fully decentralized blockchain systems lack user identity verification, enabling illegal activities such as illegal trading, Ponzi schemes, money laundering, and tax evasion, while centralizing identity verification reduces user participation.
Innovation Solution
A fully decentralized blockchain system that registers user identity information with a digital certificate authority (CA) and limits operations based on registration status, allowing anonymous users to mine and ensuring tax compliance through CA verification and PoW-based key management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user identity information is verified by a centralized authority, then illegal activities can be prevented, but user participation decreases and decentralization is compromised
Solution Approach 1:
The patent introduces digital certificates as an intermediary mechanism that enables identity verification without requiring users to trust a centralized authority. The digital certificate acts as a mediator between the user's identity and the blockchain system, allowing verification through cryptographic proof rather than centralized control. This resolves the contradiction by maintaining prevention capabilities while preserving decentralization and user participation.
Solution Approach 2:
Users autonomously manage their own identity verification by obtaining digital certificates from trusted certificate authorities and using them to prove their identity on the blockchain. This self-service approach eliminates the need for centralized identity management while still enabling prevention of illegal activities through verifiable identity proof, thus maintaining both reliability and user participation.
2Loss of information
If identity information is made public on the blockchain, then transparency is improved, but user privacy is compromised
Solution Approach 1:
The patent extracts the sensitive identity information from the blockchain by storing only digital certificates (cryptographic proof of identity) on-chain while keeping actual personal information off-chain. This separation allows the blockchain to maintain transparency through verifiable identity proof without exposing private user data, thus resolving the contradiction between transparency and privacy.
Solution Approach 2:
Instead of storing actual identity information on the blockchain, the system uses digital certificates as cryptographic copies or representations of identity. These certificates verify identity without revealing personal details, enabling transparency through verification while preserving privacy by never exposing the actual identity data on the public ledger.
Data Source
AI summary
This application provides a fully decentralized blockchain system that prevents illegal activities and tax evasion using cryptocurrencies. In this blockchain system, participants can choose whether or not to register their identity information. Even if a participant registers his/her identity information to conduct transactions, not all of the registered participant's identity information will be disclosed to the public, and only the information necessary to calculate the amount of tax due will be made public. If a participant does not register his/her identity information, he/she can still perform basic operations such as mining and remittance, however, he/she will not be able to receive cryptocurrency from other users.