We architect and deploy custom smart contracts that power your core business logic. Our development process is built on security-first principles, utilizing OpenZeppelin libraries, formal verification, and comprehensive audit trails to mitigate risk.
LABS
Services
Decentralized Identity-Linked Sub-Wallet Systems
We architect and deploy secure sub-account systems where wallet permissions and financial features are programmatically gated by verifiable credentials (VCs) or decentralized identifiers (DIDs), enabling precise, auditable role-based access for NeoBanks and FinTechs.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Full-Stack Development: From
ERC-20/721/1155tokens to complex DeFi protocols and DAO governance systems. - Rapid MVP Delivery: Go from concept to testnet in as little as 2 weeks with our battle-tested templates.
- Enterprise-Grade Security: Multi-signature deployment, gas optimization, and integration with monitoring tools like
TenderlyandForta.
We deliver contracts that are not just functional, but are audit-ready and designed for long-term maintainability, reducing your technical debt and security vulnerabilities.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Technical Capabilities We Deliver
We architect and deploy secure, scalable sub-wallet systems that integrate seamlessly with existing identity frameworks, enabling compliant user onboarding and granular asset management.
01
ERC-4337 Smart Account Integration
Deploy ERC-4337 compliant smart contract wallets with social recovery, session keys, and batched transactions. We implement gas sponsorship models and bundler/paymaster infrastructure to abstract blockchain complexity for end-users.
< 1 sec
UserOp Execution
ERC-4337
Standard
02
Decentralized Identity (DID) Linking
Integrate with W3C DID standards (did:ethr, did:key) and Verifiable Credentials to anchor sub-wallets to reusable identity. We ensure interoperability with existing KYC/AML providers and SSO systems for enterprise compliance.
W3C Compliant
DID Standard
OIDC/SAML
SSO Bridge
03
Multi-Chain & Cross-Chain Sub-Wallet Orchestration
Manage sub-wallet deployments across EVM (Ethereum, Polygon, Arbitrum) and non-EVM (Solana, Cosmos) chains from a single identity. We implement secure cross-chain messaging (CCIP, LayerZero) for unified asset visibility and control.
10+ Chains
Supported
CCIP/Axelar
Bridge Protocol
04
Policy Engine & Compliance Automation
Embed programmable spending limits, transaction whitelists, and multi-signature rules at the sub-wallet level. Our systems automate regulatory reporting and integrate with Chainalysis or Elliptic for real-time risk scoring.
Real-time
Risk Scoring
Granular
Permission Sets
05
High-Availability Key Management
Implement secure, non-custodial key derivation using MPC (Multi-Party Computation) or AWS/GCP HSM integrations. We design for zero single-point-of-failure with geographic distribution and automated backup/recovery workflows.
99.95% SLA
Uptime
MPC/HSM
Security Tier
06
Developer SDK & API Gateway
Provide a fully-documented TypeScript/Go SDK and REST/GraphQL APIs for programmatic sub-wallet creation, transaction simulation, and event monitoring. Includes webhook integrations and developer dashboard for operational oversight.
< 100ms
API Latency
TypeScript/Go
SDK Support
benefits
DELIVERABLES
Business Outcomes for Your NeoBank
Our Decentralized Identity-Linked Sub-Wallet System delivers measurable results, from enhanced security to new revenue streams. Here’s what you can expect.
01
Enhanced Security & Reduced Fraud
Implement MPC-based sub-wallets with zero-knowledge proofs for user verification. Isolate user funds from the main treasury, reducing single-point-of-failure risk and slashing fraud-related losses.
99.9%
Uptime SLA
SOC 2 Type II
Compliance
02
Accelerated Time-to-Market
Deploy a production-ready sub-wallet system in weeks, not months. We provide a modular SDK and pre-audited smart contract templates for EVM and Solana, allowing your team to focus on core banking features.
< 4 weeks
Deployment
10+
Chain Integrations
03
New Revenue Streams
Enable embedded DeFi yields, NFT marketplaces, and cross-border crypto payments directly within your app. Our system handles the complex blockchain interactions, letting you monetize new user behaviors.
15-30%
ARPU Increase
0.1%
Swap Fee Revenue
05
Superior User Experience
Offer seamless, non-custodial crypto management without seed phrases. Users get familiar bank-like controls (spending limits, transaction approvals) paired with Web3's self-sovereignty.
< 60 sec
Onboarding
95%+
Retention
06
Enterprise-Grade Infrastructure
Run on our managed RPC nodes with 99.9% SLA, multi-cloud redundancy, and real-time health monitoring. We handle gas optimization, transaction queuing, and failover so you don't have to.
99.9%
Uptime SLA
< 1 sec
RPC Latency
Choose Your Implementation Path
Structured Development Tiers
Compare our tiered service packages for deploying a secure, scalable decentralized identity-linked sub-wallet system. Each tier includes core smart contract development with increasing levels of support, security, and operational management.
| Core Deliverables | Starter | Professional | Enterprise |
|---|---|---|---|
Custom DID & Sub-Wallet Smart Contracts | |||
On-Chain Permission & Recovery Logic | |||
Gas-Optimized Architecture Review | |||
Third-Party Security Audit (1 Firm) | |||
Multi-Chain Deployment (EVM) | 1 Network | Up to 3 Networks | Unlimited |
Integration SDK & API | Basic | Advanced with Examples | Full White-Label |
Deployment & Configuration Support | Self-Service | Guided | Fully Managed |
Post-Launch Monitoring & Alerting | 30 Days | 6 Months | 24/7 with SLA |
Incident Response Time | Best Effort | < 24 Hours | < 1 Hour |
Ongoing Protocol Upgrades | Optional | Included | |
Estimated Timeline | 6-8 Weeks | 8-12 Weeks | 12-16 Weeks |
Starting Price | $50K | $150K | Custom Quote |
how-we-deliver
PREDICTABLE, SECURE, SCALABLE
Our Development & Integration Process
A structured, four-phase approach designed for technical leaders who need reliable, auditable, and production-ready identity wallet systems without compromising on security or speed.
01
Architecture & Specification
We begin with a deep technical discovery to define your sub-wallet logic, key management strategy, and integration points with your existing identity layer (e.g., OIDC, SIWE, Verifiable Credentials). Deliverables include a detailed technical spec and system architecture diagram.
1-2 weeks
Specification Phase
Zero
Technical Debt Introduced
02
Smart Contract & Protocol Development
Our engineers build the core smart contracts for wallet factories, permission rules, and recovery modules using Solidity 0.8+ with OpenZeppelin libraries. Every contract undergoes static analysis and preliminary internal review before audit.
Gas-Optimized
Contract Design
OpenZeppelin
Security Foundation
03
Security Audit & Formal Verification
All contract logic and access control systems undergo a rigorous audit by our partner security firms. We provide a comprehensive report and implement all critical recommendations before any deployment to testnet.
Third-Party
Security Audit
100%
Critical Fixes Guaranteed
04
Deployment & Integration Support
We manage the secure deployment to your chosen network (EVM-compatible L1/L2) and provide SDKs, API documentation, and developer support for seamless integration into your frontend and backend services.
< 72 hours
Production Deployment
24/7
Launch Support
Infrastructure Decision Matrix
Build vs. Buy: Custom Development vs. Generic SDKs
A detailed comparison of the time, cost, and risk involved in building a decentralized identity-linked sub-wallet system from scratch versus partnering with Chainscore Labs for a custom, production-ready solution.
| Key Factor | Build In-House | Generic SDK/API | Chainscore Custom Solution |
|---|---|---|---|
Time to Production | 6-12+ months | 2-4 months | 4-8 weeks |
Initial Development Cost | $250K - $750K+ | $50K - $150K | $75K - $200K |
Security & Audit Burden | High (Your responsibility) | Medium (Shared risk) | Low (Pre-audited, insured) |
Protocol Flexibility | Full (You build it) | Low (Vendor's roadmap) | High (Tailored to your stack) |
Ongoing Maintenance & Upgrades | Your team, full-time | Vendor updates, limited control | Managed SLA, custom roadmaps |
Identity Standard Support | Custom implementation | Limited (e.g., only Verifiable Credentials) | Multi-standard (VCs, SBTs, OIDC, SIWE) |
Sub-Wallet Feature Depth | Designed from scratch | Basic multi-sig, limited logic | Granular policies, social recovery, automation |
Integration Complexity | High (R&D heavy) | Moderate (Documentation dependent) | Low (Dedicated engineering support) |
Total Cost of Ownership (Year 1) | $400K - $1M+ | $100K - $300K | $150K - $350K |
Recommended For | Protocols with massive, unique scale needs | MVPs or non-critical internal tools | FinTechs & startups launching secure, scalable products |
Decentralized Identity & Sub-Wallet Systems
Frequently Asked Questions
Get clear answers on how we build secure, scalable identity-linked wallet architectures for your Web3 application.
It's a secure architecture where a user's primary identity (like a wallet or DID) controls multiple, purpose-specific sub-wallets. This enables granular permissions, automated fund flows, and enhanced security by isolating assets and transaction types. We build these using standards like ERC-4337 for account abstraction, ERC-6551 for token-bound accounts, and verifiable credentials for identity.
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