We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our contracts are built for high-frequency DeFi, enterprise-grade NFTs, and complex DAOs, with a focus on gas optimization and upgradability using patterns like ERC-2535 Diamonds.
AppChain-Specific DID Architecture
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Security-First Development: Every line undergoes internal audits using
SlitherandMythril, followed by formal verification and a mandatory third-party audit from firms like CertiK or Quantstamp. - Full Lifecycle Support: From initial spec and
Foundry/Hardhattesting to mainnet deployment and post-launch monitoring with real-time alerting. - Deliverables: Production-ready source code, comprehensive test suites with >95% coverage, deployment scripts, and user/admin documentation.
Core Architectural Capabilities
Our DID architecture is built on battle-tested principles, delivering the security, performance, and flexibility required for production-grade AppChains. We focus on verifiable outcomes, not just features.
On-Chain Identity Registry
Deploy a custom, gas-optimized registry smart contract on your AppChain. We implement the ERC-1056 (ERC-725) standard for maximum interoperability, with custom logic for your specific governance and recovery models.
Decentralized Key Management
Implement secure, non-custodial key management with social recovery, multi-sig guardians, and hardware wallet integration. We design systems that prevent single points of failure for user assets and data.
ZK-Proof Privacy Layer
Integrate zero-knowledge circuits (using Circom or Halo2) to enable selective disclosure of credentials. Users can prove attributes (e.g., KYC status, reputation score) without revealing underlying data.
Real-Time DID Resolver
Deploy a high-availability resolver service with sub-100ms response times for DID document lookup. Our architecture includes caching layers and failover mechanisms to ensure 99.9% uptime for your dApp's identity queries.
Compliance & Audit-Ready Code
Receive production-ready codebases with comprehensive documentation, OpenZeppelin security patterns, and integration test suites covering >90% of logic. Our deliverables are structured for easy third-party audit by firms like Trail of Bits.
Business Outcomes for Your AppChain
Our AppChain-Specific DID Architecture delivers measurable advantages, from enhanced security to accelerated user growth. Here’s what you can expect.
Frictionless User Onboarding
Replace complex wallet setups with seamless, passwordless logins. Reduce user drop-off by up to 70% and acquire users from Web2 with familiar UX patterns.
Enhanced Security & Compliance
Implement granular, on-chain access controls and verifiable credentials. Achieve compliance with KYC/AML frameworks without sacrificing user privacy or decentralization.
Interoperable Identity Layer
Enable portable user identities and reputations across your ecosystem and connected chains. Increase user lifetime value by unlocking cross-dApp functionality.
Reduced Operational Overhead
Offload complex identity management, key recovery, and verification logic to our audited, managed infrastructure. Cut development time and maintenance costs significantly.
Monetizable Data Insights
Gain permissioned insights into user behavior and reputation through verifiable claims, enabling targeted features, improved governance, and new revenue streams.
Future-Proof Architecture
Built with modular components supporting W3C DID standards and emerging ZK-proofs. Easily integrate new verification methods and scale without refactoring.
Build vs. Buy vs. Chainscore
A technical and financial comparison of approaches for implementing a custom Decentralized Identity (DID) system for your application-specific blockchain.
| Key Factor | Build In-House | Generic DID Provider | Chainscore AppChain DID |
|---|---|---|---|
Time to Production | 6-12 months | 2-4 months | 4-8 weeks |
Architecture Fit | Perfect (eventually) | Poor (one-size-fits-all) | Perfect (custom-built) |
Security & Audit Burden | High (your team's responsibility) | Medium (shared risk) | Low (we provide audited core + your custom audit) |
Native Chain Integration | Your team builds it | Limited SDK/API | Deep integration with your consensus & state |
Ongoing Maintenance & Upgrades | Full-stack dev team required | Vendor roadmap dependency | Optional SLA with upgrade support |
Total First-Year Cost | $250K - $600K+ | $50K - $120K + usage fees | $80K - $200K (fixed project scope) |
Custom Logic (e.g., KYC hooks, governance) | Fully customizable | Highly restricted | Designed for extensibility |
Team Expertise Required | Senior Cryptography & Protocol Engineers | API Integration Engineers | Your Product Team + Our Specialists |
Example Outcome | High risk, delayed launch, core team distraction | Compromised UX, vendor lock-in, scaling fees | Secure, tailored identity layer accelerating your roadmap |
Our Delivery Methodology
We deliver production-ready AppChain DID systems through a structured, milestone-driven approach that minimizes risk and accelerates your time-to-market.
Architecture & Design Sprint
We conduct a 2-week collaborative sprint to define your DID data model, on-chain/off-chain storage strategy, and integration points with your existing auth stack.
Smart Contract Development
Our engineers build your core DID registry and resolver contracts using Solidity 0.8+ with OpenZeppelin libraries, implementing W3C DID Core standards for interoperability.
Security Audit & Verification
Every DID system undergoes a mandatory third-party audit from firms like Spearbit or Code4rena before deployment, with findings remediated and verified.
SDK & Integration Package
We deliver a TypeScript/Go SDK for your team, complete with documentation, example dApps, and direct support for integrating DID auth into your frontend and backend.
Staged Deployment
We manage a phased rollout from testnet to mainnet, including load testing, monitoring setup, and a rollback plan to ensure zero-downtime launches.
Post-Launch Support & Scaling
Receive 30 days of included support with performance monitoring, and access to our team for scaling consultations as your user base grows.
Typical 8-Week Delivery Timeline
Our proven delivery framework for AppChain-Specific DID Architecture, from initial design to production deployment.
| Phase & Deliverables | Week 1-2 | Week 3-4 | Week 5-6 | Week 7-8 |
|---|---|---|---|---|
Architecture & Design | Requirements & DID Model | Smart Contract Specs | Integration API Design | |
Core Development | On-Chain Registry & Resolver | Claim Schema & Issuer Logic | Verifier & Revocation Modules | |
Security & Testing | Internal Audit & Unit Tests | Third-Party Audit & Pen Testing | ||
Deployment & Integration | Testnet Deployment | Mainnet Go-Live & Client SDKs | ||
Post-Launch Support | 30-Day Warranty & Documentation |
Frequently Asked Questions
Common questions from CTOs and technical leads about implementing custom decentralized identity for your application-specific blockchain.
From design to production deployment, a standard AppChain DID architecture project takes 4-8 weeks. This includes a 1-week discovery and scoping phase, 2-3 weeks for core smart contract and SDK development, 1-2 weeks for integration and testing, and a final week for deployment and documentation. Complex integrations with existing KYC systems or multi-chain attestations may extend this timeline.
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Our experts will offer a free quote and a 30min call to discuss your project.