Decentralized Identity Verification
Self-sovereign identity that puts users in control of their credentials while meeting KYC/AML requirements
The Challenge
Financial institutions spend an average of $60 million annually on KYC/AML compliance, yet customers must repeatedly submit the same identity documents to every new service provider they onboard with. Centralized identity databases create honeypot targets for attackers — a single breach can expose millions of individuals' personal data simultaneously.
Cross-border identity verification is particularly painful, with inconsistent document standards, slow manual review processes, and no interoperability between national identity systems. Customers lack control over who accesses their personal information, how long it is retained, and whether it is shared with third parties without explicit consent.
Our Solution
MicrocosmWorks can build a self-sovereign identity platform based on W3C Decentralized
Identifiers (DIDs) and Verifiable Credentials (VCs) that fundamentally restructures the trust model for identity verification. Users hold their own credentials in a secure mobile wallet and selectively disclose only the specific claims a verifier needs — proving age without revealing birthdate, or confirming accreditation without sharing financial details.
Issuers such as banks, governments, and universities publish credential schemas and revocation registries on-chain, while the actual personal data never touches the blockchain.
The platform provides fintech organizations with a compliant KYC/AML verification flow that is faster, cheaper, and more privacy-preserving than centralized alternatives.
System Architecture
The architecture follows the trust triangle model with distinct Issuer, Holder, and
Verifier roles connected through a shared DID registry on a public blockchain. A DID resolver layer abstracts multi-method support (did:ethr, did:web, did:key) allowing interoperability with existing identity ecosystems and emerging government digital identity programs. Zero-knowledge proof circuits enable selective disclosure and predicate proofs, letting users prove statements about their credentials without revealing underlying data.
- DID Registry & Resolver: On-chain DID document registry with multi-method resolution supporting did:ethr, did:web, and did:key, providing a universal namespace for
decentralized identifiers and public key discovery
- Credential Issuance Service: API and admin dashboard for trusted issuers to define credential schemas, issue signed verifiable credentials, manage revocation through
on-chain status lists, and monitor issuance analytics
- Mobile Identity Wallet: Native mobile application with secure enclave key storage, biometric authentication, credential management, selective disclosure interface, and
backup/recovery using social recovery or seed phrases
- Verification Gateway: Stateless verification service that validates credential signatures, checks revocation status, verifies zero-knowledge proofs, and returns
structured compliance decisions to relying parties in real-time
Technology Stack
| Layer | Technologies |
|---|---|
| Backend | Rust (DID resolver), Node.js (issuance/verification APIs), gRPC, Express.js |
| AI / ML | Document authenticity detection (CNN), liveness detection, OCR (Tesseract) |
| Frontend | React Native (mobile wallet), Next.js (issuer/verifier dashboards) |
| Database | PostgreSQL (off-chain metadata), Redis (session/nonce cache), Ethereum (DID registry) |
| Infrastructure | AWS KMS, HashiCorp Vault, Ethereum L2 (Polygon PoS), Docker, Kubernetes |
Implementation Approach
The project begins with DID registry contract deployment and resolver service development
(weeks 1-4), establishing the foundational identity layer. Weeks 5-8 focus on the credential issuance service and mobile wallet development in parallel, including secure enclave integration and backup/recovery flows. The verification gateway and zero-knowledge proof circuits are built during weeks 9-11, followed by end-to-end integration testing, security auditing, and compliance validation with regulatory advisors in weeks 12-14.
Pilot deployment targets two issuer organizations and one verifier for initial validation.
Expected Impact
| Metric | Improvement | Detail |
|---|---|---|
| KYC Onboarding Time | 80% reduction | Reusable verified credentials reduce repeat KYC from days to a single wallet-based consent interaction |
| Compliance Cost | 65% lower | Shared verification infrastructure and reusable credentials dramatically cut per-customer compliance spend |
| Data Breach Exposure | Near zero | No centralized PII storage means there is no honeypot to breach — credentials live in user wallets only |
| Cross-Border Verification | 10x faster | Standardized verifiable credentials eliminate manual document translation and foreign authority validation |
| User Privacy Score | +90% | Selective disclosure and zero-knowledge proofs ensure minimum necessary data sharing for every interaction |
| Credential Reuse Rate | 85%+ | Once issued, a single credential satisfies verification requests across all participating relying parties |
Related Services
- Blockchain Development — DID registry contracts, credential schema standards, and on-chain revocation infrastructure
- Cybersecurity — Cryptographic key management, secure enclave integration, and zero-knowledge proof circuit design
- Digital Consulting — Regulatory compliance mapping, identity ecosystem strategy, and stakeholder trust framework design
More Blueprints
Discover more implementation blueprints for your next project
Smart Contract Audit Platform
Automated security analysis that catches vulnerabilities before attackers do, at a fraction of manual audit cost
NFT Marketplace & Digital Collectibles
Launch a creator-first marketplace with seamless minting, trading, and royalty enforcement across multiple chains
Blockchain Supply Chain Transparency
End-to-end immutable traceability from farm or factory floor to consumer hands
Frequently Asked Questions
MicrocosmWorks implements self-sovereign identity (SSI) architectures where users store their verified credentials (age, citizenship, professional licenses, education) in a personal wallet on their device, and only share zero-knowledge proofs or selective disclosure of specific attributes with requesting services — the central system stores only cryptographic proofs, never the actual personal data. Verification happens peer-to-peer between the user's wallet and the relying party, with the blockchain serving only as a trust registry for issuer public keys and credential revocation status. This means there is no honeypot database to breach, fundamentally eliminating the class of centralized data breach vulnerabilities.
MicrocosmWorks builds on W3C Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs) standards, ensuring interoperability with any compliant wallet, issuer, or verifier in the growing global SSI ecosystem including Microsoft Entra Verified ID, Hyperledger Aries, and Dock. The system supports multiple DID methods (did:web, did:ion, did:key) to balance between decentralization purity and practical deployment considerations, and credentials are encoded in JSON-LD or JWT format for broad compatibility. Standards-based implementation protects your investment from vendor lock-in and ensures your identity system can participate in emerging cross-industry verification networks.
MicrocosmWorks implements a trust triangle model where recognized authorities (governments, universities, licensing boards, employers) issue digitally signed verifiable credentials to individuals, who store them in their personal wallets and present them when verification is needed. The verifier checks the cryptographic signature against the issuer's public key (published on-chain or on did:web) to confirm authenticity without contacting the issuer directly. For bootstrapping credential issuance from existing paper documents, MicrocosmWorks integrates with identity verification providers that perform initial document authentication and biometric matching before minting the digital credential.
MicrocosmWorks deploys decentralized identity for mainstream use cases including age verification for e-commerce and entertainment (without revealing birth date or address), employee credential portability between organizations, healthcare provider license verification across state lines, education credential verification for hiring, and KYC reuse where a single bank verification can be accepted by other financial services. The technology is particularly valuable for cross-border scenarios where centralized databases do not exist, such as refugee identity and displaced worker credential verification. Enterprise deployment typically runs $25-$50/hr for development and integration with existing identity management systems.
MicrocosmWorks implements credential revocation using privacy-preserving mechanisms like revocation registries (based on cryptographic accumulators) where the issuing authority can revoke a credential without revealing the identity of the holder. When a verifier checks a presented credential, they simultaneously check the revocation registry to confirm the credential has not been revoked since issuance. The system supports both immediate revocation for cause (license suspension) and time-based expiration for routine renewals, with configurable grace periods and renewal notification workflows for credential holders.
Want to Implement This Solution?
Contact us to discuss how we can build this solution for your business with our expert team.
Get In Touch