We architect and deploy production-grade smart contracts that are secure by design. Our process includes formal verification, comprehensive unit testing, and integration with industry-standard security tools like Slither and MythX before any code is deployed.
LABS
Services
Mobile Wallet for Verifiable Credentials & SSI
We build secure, standards-compliant mobile wallets for W3C Verifiable Credentials and DIDs, delivering portable identity for education, finance, and professional licensing.
Chainscore © 2026
overview
CORE SERVICES
Custom Smart Contract Development
Secure, audited smart contracts tailored to your specific business logic and deployed on your chosen blockchain.
- Custom Tokenomics & Standards: Design and implement
ERC-20,ERC-721,ERC-1155, and bespoke token models. - DeFi Primitives: Build automated market makers (AMMs), liquidity pools, staking mechanisms, and lending protocols.
- Enterprise Logic: Develop custom business logic for supply chain, identity, governance, and asset tokenization.
- Gas Optimization: Write efficient Solidity/Vyper to minimize transaction costs and maximize user savings.
We deliver fully documented, auditable source code with a clear upgrade path, ensuring your application remains secure and adaptable for the long term.
key-features-cards
BUILDING TRUSTED IDENTITY INFRASTRUCTURE
Core Technical Capabilities We Deliver
We architect and deploy production-ready mobile wallet solutions for Verifiable Credentials and Self-Sovereign Identity (SSI). Our engineering focus is on security, interoperability, and seamless user experience to accelerate your go-to-market.
02
Secure Credential Storage & Key Management
Hardened mobile keychain integration using platform-native secure enclaves (iOS Secure Enclave, Android Keystore) for private key protection. Implements BIP-39/44 standards for deterministic wallet derivation.
Hardware-Backed
Key Security
Zero-Knowledge
Local Storage
04
Custom Issuer/Verifier SDK Integration
We build and integrate lightweight SDKs for your backend, enabling seamless credential issuance and verification flows. Includes REST APIs, webhook systems, and admin dashboards.
REST/GraphQL
API Delivery
< 2 weeks
SDK Integration
06
Production Deployment & DevOps
End-to-end CI/CD pipeline setup, App Store/Play Store deployment, and 24/7 monitoring with 99.9% uptime SLA. We manage the full lifecycle from development to live operations.
99.9%
Uptime SLA
CI/CD
Automated Pipeline
benefits
DELIVERABLES
Business Outcomes for Your Product
Our Mobile Wallet for Verifiable Credentials & SSI delivers tangible infrastructure, not just concepts. We build the secure, scalable foundation that powers your user identity and data portability features.
01
Secure, White-Label Mobile Wallet SDK
We deliver a production-ready, white-label mobile SDK (iOS/Android) for credential issuance, storage, and presentation. Built with W3C DID and VC standards, it enables seamless user onboarding and credential management within your app.
W3C Compliant
Standards
2-4 Weeks
Integration
02
Enterprise-Grade Credential Issuance API
Deploy a secure backend API for issuing signed, tamper-proof credentials. Our system supports batch issuance, revocation lists (StatusList2021), and integrates with your existing KYC/AML or data sources.
99.9% SLA
Uptime
< 100ms
Issuance Latency
03
Interoperable SSI Infrastructure
Future-proof architecture supporting multiple DID methods (did:key, did:web) and credential formats (JWT, JSON-LD). Ensures your users can interact with other SSI ecosystems and verifiers without vendor lock-in.
DID Core 1.0
Protocol
OIDC4VP Ready
Interop
04
Zero-Knowledge Proof & Selective Disclosure
Implement advanced privacy features allowing users to prove claims (e.g., age > 21) without revealing underlying data. Built with Circom/ZK-SNARKs or BBS+ signatures for maximum user data sovereignty.
ZK-SNARKs/BBS+
Tech Stack
Patent-Pending
Circuits
05
Compliance & Audit-Ready Codebase
Receive a fully audited codebase with comprehensive documentation. Our development follows OpenZeppelin security patterns and includes third-party audit reports from firms like Trail of Bits or Quantstamp for enterprise trust.
Audited
Security
SOC 2 Framework
Compliance
06
Scalable Verifier Integration Suite
A suite of tools and APIs for partners to easily verify credentials issued by your system. Includes hosted verification services, open-source verifier libraries, and detailed integration guides.
10k+ TPS
Verification Scale
REST & GraphQL
API Options
Structured Roadmap to Production
Phased Development Packages
Choose the package that aligns with your project's stage, from initial MVP to a fully scalable, enterprise-grade wallet.
| Feature / Deliverable | Proof-of-Concept | MVP Launch | Production Scale |
|---|---|---|---|
Core Wallet SDK Integration | |||
DID Method Support (did:key, did:ethr) | did:key | did:key, did:ethr | did:key, did:ethr, did:web |
Credential Format Support | W3C Verifiable Credentials | W3C VC, SD-JWT | W3C VC, SD-JWT, AnonCreds |
Custom UI/UX Design & Branding | Basic Theming | Custom Screens & Flows | Full White-Label Solution |
Backend Issuer/Verifier API | Reference Implementation | Deployed Microservice | Scalable Cloud Service + SDK |
Security Audit Scope | Architecture Review | Smart Contract & SDK Audit | Full Penetration Test & Audit |
Deployment Targets | iOS Simulator / Android Emulator | TestFlight / Internal Beta | App Store / Play Store |
Ongoing Support & Maintenance | 30 Days | 6 Months | 12 Months SLA |
Estimated Timeline | 4-6 Weeks | 8-12 Weeks | 16+ Weeks |
Typical Investment | $25K - $50K | $75K - $150K | $200K+ |
how-we-deliver
PROVEN METHODOLOGY
Our Development Process
A structured, security-first approach to deliver production-ready mobile SSI wallets. We combine deep protocol expertise with agile delivery to reduce your time-to-market and technical risk.
01
Architecture & Protocol Design
We architect your wallet's core identity layer, selecting and integrating the optimal SSI standards (W3C VCs, DIDs, OIDC4VC) and blockchain protocols (Ethereum, Polygon, Solana) for your use case.
2-3 weeks
Design Phase
W3C / DIF
Standards Compliant
02
Secure Core Development
Development of the secure enclave for key management, credential storage, and cryptographic operations. Includes implementation of BIP-32/39/44 for key derivation and hardware-backed security where required.
Zero-Knowledge
Proof Support
FIPS 140-2
Security Patterns
03
UX/UI & Integration
Building intuitive user flows for credential issuance, presentation, and wallet recovery. Seamless integration with your backend, verifier systems, and existing mobile app infrastructure.
React Native / Flutter
Cross-Platform
< 1 sec
Credential Verify
04
Audit & Security Hardening
Comprehensive security review including static/dynamic analysis, penetration testing of the mobile client and backend APIs. We prepare for formal audits with firms like Trail of Bits or Quantstamp.
100%
Code Coverage Goal
OWASP MASVS
Compliance
05
Deployment & DevOps
CI/CD pipeline setup for automated builds, testing, and App Store/Play Store deployment. Provisioning of scalable backend infrastructure for credential status lists and resolver services.
99.9% SLA
Backend Uptime
Automated
Store Deployment
06
Maintenance & Upgrades
Ongoing support, monitoring, and protocol updates. We ensure your wallet stays compatible with evolving SSI standards and blockchain networks, with defined SLAs for response and resolution.
24/7
Monitoring
< 4 hr
Critical Response
security
FULL-STACK ENGINEERING
Custom Blockchain Development
Build production-grade blockchain networks and applications with our end-to-end engineering expertise.
We architect and deploy custom L1/L2 chains, sidechains, and app-specific rollups tailored to your exact throughput, cost, and governance needs. Our team handles everything from consensus design to node infrastructure, ensuring mainnet readiness in 8-12 weeks.
From zero to a fully operational, secure network with your token economics and validator set.
- Core Protocol Development: Custom
consensus mechanisms(PoS, PoA, DAG),EVM/WASMexecution environments, and cross-chain bridges. - Node & Infrastructure: High-availability validator setups, RPC endpoints, block explorers, and indexers with 99.9% uptime SLAs.
- Full-Stack dApp Integration: Seamless front-end and back-end integration for wallets,
DeFiprotocols, andNFTmarketplaces.
Mobile Wallet for Verifiable Credentials & SSI
Frequently Asked Questions
Get clear answers on our development process, security, and support for your decentralized identity project.
We deliver a minimum viable product (MVP) in 6-8 weeks, including core credential issuance, storage, and presentation. A full-featured, production-ready wallet with custom UI/UX, multi-protocol support, and enterprise integrations typically takes 12-16 weeks. Timelines are based on our proven agile methodology with bi-weekly sprints and demos.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall