Blockchain User Profile Sharing with Anonymous Consent

The patent introduces cryptographic intermediaries (hash functions, digital signatures, and zero-knowledge proofs) that mediate between data sharing requirements and privacy protection. These cryptographic mechanisms allow verification of data authenticity and authorization without exposing underlying personal identities, thus maintaining both efficiency and privacy.

The patent creates cryptographic copies of identity information (hashes of identifiers) that can be shared and verified without revealing the original sensitive data. These cryptographic representations serve as functional substitutes that maintain security while enabling data sharing operations.

The patent implements self-service mechanisms where the blockchain network automatically verifies KYC compliance through smart contracts and cryptographic proofs. The system autonomously validates data sharing requests against compliance rules without requiring manual intervention from centralized authorities, thereby maintaining reliability while reducing complexity.

The patent replaces mechanical centralized verification systems with cryptographic and algorithmic automated verification. Smart contracts encode compliance rules that automatically execute and validate data sharing operations, substituting human-mediated centralized control with decentralized automated mechanisms.

The patent applies different quality levels of identity disclosure to different contexts. Cryptographic proofs provide sufficient information for accountability verification locally, while actual identity information remains protected. The system tailors the level of information disclosure to the specific operational context, providing just enough transparency for accountability without unnecessary exposure.

The patent creates asymmetric information distribution where different parties have different levels of access to identity information. Verifiers can confirm authenticity through cryptographic proofs without obtaining actual identity data, creating an asymmetric relationship between verification capability and information exposure that maintains both accountability and privacy.

The patent segments identity information into multiple cryptographic components (public keys, hashed identifiers, digital signatures). Each component serves a specific function in the blockchain record, allowing the system to maintain immutable verification data while protecting the underlying sensitive identity information through cryptographic segmentation.

The patent transforms sensitive identity parameters into cryptographic parameters through hashing and encryption. The transformation changes the nature of the data from personally identifiable information to cryptographic representations that maintain immutability properties while eliminating direct identity exposure risks.