What is nChain Identity doing with my data, and does it act as a data processor or controller?

FAQ 11

nChain Identity operates as both a data processor and a data transmitter, providing secure handling and transmission of verifiable credentials.

nChain Identity Wallet

The nChain Identity Wallet puts individuals in full control of their personal data. All data is stored in the device, encrypted and accessible using your biometrics. With the wallet, users can:

• Securely hold and own their digital credentials

• Easily carry their credentials within the app

• Share information selectively, only when necessary

This ensures true data ownership and portability, empowering users to decide what to share, with whom, and when—all while maintaining privacy.

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nChain Identity Portals

The Identity Portals enable organizations and individuals to manage, monitor, and audit verifiable credential operations through dedicated Issuer and Verifier portals. The portals store and encrypt all the information related to all credentials and provide comprehensive oversight of all credentials issued and verified, including:

• Credential issuance details (issuer, date, documents, credential data and status, etc.)

• Verification records (who verified, when, and the credential status at the time, etc.)

• Claiming activity (who claimed the credential and when, etc.)

• Full auditability of credential lifecycle events

This ensures transparency, compliance, and accountability across all credential interactions.

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Privacy by Design: Data On-Chain

At nChain, privacy is at the core of everything we do. No personal or sensitive information is ever stored on the blockchain. Instead, we only store on-chain:

• A Decentralized Identifier (DID) — a unique, anonymous identifier

• Your cryptographic signature

This ensures that all users' data remains private and secure, while still benefiting from the trust and immutability of blockchain technology.