Decentralized Identity Systems using Blockchains

Explore the core structure of identity systems and entity systems, detailing identity, identifiers, attestation, and role, and explain how attestations validate attributes and rules govern access to resources.

Explore the concept of identity in a decentralized context, defining how attributes, data, and PII—such as names, dates of birth, educational qualifications, and online behavior—collectively establish an individual’s identity.

Identifiers act as distinct labels that distinguish one identity from another within identity systems, as shown by LinkedIn searches using surname, location, and company to access a specific identity.

Learn how attestations present evidence to substantiate identity attributes, such as name or age, with government documents or endorsements, and compare social attestations like LinkedIn recommendations to trusted validations.

Identify and define roles in identity systems, mapping functions, responsibilities, and access rights to individuals or entities, using examples like employee, manager, and administrator to illustrate distinct permissions.

Explore who owns our identity by contrasting centralized control with decentralized tools that manage identifiers and attestations, empowering us to own our identities.

Explore digital identity systems as frameworks that manage, authenticate, and verify identities across online platforms, acting as databases and single sources of truth for individuals.

Explain centralized, decentralized, federated, and emerging digital identity systems, including government and corporate identifiers, self-sovereign and blockchain-based identities, decentralized identifiers, and W3C verifiable credentials, plus privacy concerns from federated logins.

Track the evolution of digital identity from paper records to centralized databases, then to blockchain-based decentralized identity with self-sovereign identity and verifiable credentials, amid biometric and privacy-focused trends.

Explore threats to digital identities by examining online biographic data, facial recognition and voice patterns, usernames and passwords, and online activity tracked as digital footprints.

Explore the different digital identities, including individual, corporate, and device identities, and how authentication enables secure interactions and data exchange across online systems, IoT, and organizational presence.

Explore why digital identity matters now by examining privacy risks and data collection practices. Highlight the role of centralized systems and potential exclusion in identity verification.

Explore how decentralized identity gives individuals and organizations control and ownership of their digital identities without central authorities, enabling secure management and verification through attestations and decentralized tech.

Decentralized identity systems empower users with control and ownership of their digital identities, operating on distributed architectures like blockchains to enable privacy-preserving selective disclosure, interoperability and portability, and verifiable credentials.

Explore the core components of decentralized identity: decentralized identifiers, verifiable credentials, and the infrastructure layer provided by blockchain or other distributed ledgers, and see how self-sovereign identity implements these principles.

Explore self-sovereign identity, a revolutionary approach to digital identity that puts individuals in control, allowing them to own, manage, and share personal information securely and privately without central authorities.

Explore the core principles of self-sovereign identities and their alignment with decentralized identity systems. Emphasize user control and ownership, privacy, interoperability, verifiable credentials, dates, portability and reusability.

Explore the self-sovereign identity framework built on decentralized identifiers and verifiable credentials, carried by individuals, enabling portable, interoperable proofs with cryptographic signatures and selective disclosure through agents and hubs.

Explore how decentralized identifiers, or DIDs, underpin self-sovereign identity in a decentralized identity framework. DIDs provide unique, persistent identities for individuals, organizations, or devices without central authorities or intermediaries.

Describe the did structure as a url with a method and method-specific identifier, such as did:example or did:key; the deed document with keys and material is retrieved to validate identity.

Explore how the W3C standard for decentralized identifiers enables secure, interoperable, and universally usable identities across platforms by outlining method specifications and did document structures.

Explore verifiable credentials as portable, cryptographically verified attestations linked to dates in decentralized identity systems, connected to decentralized identifiers, enabling self-sovereign identities via issuer, subject, claims, and proofs and signatures.

Explore verifiable credentials across educational credentials, professional certifications, identity documents, and health credentials. Universities issue verifiable credentials detailing name, degree, and graduation date for independent employer verification.

Explore the W3C verifiable credential data model and its components—verifiable credentials, claims, credentials schema, digital signatures and proofs—supporting secure, interoperable, privacy-preserving verifications in decentralized identities.