We architect and deploy audit-ready smart contracts for tokens, DeFi protocols, NFTs, and DAOs. Our development process is built on OpenZeppelin standards and Solidity 0.8+ best practices, ensuring security and gas efficiency from day one.
LABS
Services
On-Chain Reputation & Nonprofit Verification System
Chainscore builds secure, transparent systems that verify nonprofit legitimacy and track impact using decentralized identity and on-chain credentials, directly increasing donor confidence and platform integrity.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your decentralized applications.
From a 2-week MVP to a complex multi-chain protocol, we deliver battle-tested code that just works.
Our full-cycle service includes:
- Custom Logic & Architecture: Design for
ERC-20,ERC-721,ERC-1155, or bespoke standards. - Comprehensive Testing: Unit, integration, and scenario testing with 95%+ coverage.
- Gas Optimization: Review and refinement to reduce deployment and transaction costs by up to 40%.
- Deployment & Verification: Full support for mainnet and testnet launches on Ethereum, Polygon, Arbitrum, and other EVM chains.
We mitigate critical risks with multi-layered security: formal verification, automated analysis tools, and manual review by senior auditors. Every contract includes detailed documentation and is built for easy future upgrades.
key-features-cards
ARCHITECTURE
Core Components of a Trustless Verification System
Our system is built on modular, audited components that deliver verifiable, on-chain reputation without relying on centralized authorities. This ensures transparency, security, and seamless integration for your platform.
02
On-Chain Reputation Scoring Protocol
Customizable scoring algorithms that aggregate verifiable data (donation history, governance participation, KYC status) into a transparent, immutable reputation score. Scores are recalculated with each new on-chain attestation.
04
Multi-Chain Attestation Registry
A resilient registry built on Ethereum, Polygon, and other EVM chains to store and query verification status. Ensures system availability and low-cost transactions for end-users.
05
Automated Compliance & Monitoring Oracles
Off-chain oracles that monitor regulatory databases and on-chain activity, automatically issuing or revoking attestations based on predefined, transparent rules, reducing manual overhead.
06
Developer SDK & API Gateway
Comprehensive TypeScript/Go SDKs and REST/GraphQL APIs for easy integration. Includes pre-built UI widgets for verification checks, allowing you to implement core functionality in days, not months.
< 1 week
Integration Time
benefits
DELIVERABLES & IMPACT
Business Outcomes: From Technical Build to Donor Trust
We architect and deploy verifiable on-chain reputation systems that directly translate technical execution into tangible trust and operational efficiency for nonprofits.
01
Audited On-Chain Reputation Engine
Deploy a custom, gas-optimized reputation protocol (ERC-20/ERC-1155 based) with immutable performance history. Includes a full security audit report from a top-tier firm like CertiK or OpenZeppelin.
CertiK
Audit Partner
ERC-1155
Token Standard
02
Automated Donor Verification Portal
A white-labeled donor dashboard that automatically verifies on-chain reputation scores and displays impact metrics. Integrates with existing CRM/payment systems via secure APIs.
< 2 sec
Verification Time
REST/GraphQL
API Support
03
Real-Time Impact Transparency Feed
Public, immutable ledger of fund allocation and project milestones. Donors can trace every contribution to specific outcomes via on-chain proofs, building unparalleled trust.
100%
Transaction Traceability
Subgraph
Data Indexing
04
Reduced Fraud & Operational Overhead
Replace manual grant reporting and costly third-party verifiers with automated, cryptographically secure proofs. Slash administrative costs and eliminate audit discrepancies.
90%
Faster Reporting
Zero-Knowledge
Proof System
05
Scalable Donor Acquisition Engine
Leverage verifiable reputation to unlock funding from crypto-native donors, DAOs, and grant programs that require transparent proof of past performance and governance.
DAO Treasury
Funding Access
6-8 weeks
Time to Launch
06
Enterprise-Grade Infrastructure & Support
Deployment includes 99.9% uptime SLA for indexing services, 24/7 monitoring, and dedicated technical support. Built for compliance with evolving regulatory standards.
99.9%
Uptime SLA
SOC 2
Compliance Framework
Structured Roadmap
Phased Development for Measurable Growth
A modular, milestone-driven approach to building and scaling your on-chain reputation and nonprofit verification system. Start with core functionality and expand with advanced features as your ecosystem grows.
| Capability | Phase 1: Foundation | Phase 2: Growth | Phase 3: Scale |
|---|---|---|---|
Core Reputation Engine | |||
Basic Donor/Project Verification | |||
Multi-Chain Deployment (EVM) | Ethereum Mainnet |
|
|
Advanced Analytics Dashboard | |||
Custom KYC/AML Integration | |||
Real-time Impact Reporting API | |||
Governance & DAO Tooling | |||
Time to Launch | 6-8 weeks |
|
|
Typical Investment | $50K - $80K | $30K - $50K | Custom |
how-we-deliver
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts on EVM and Solana that form the secure backbone of your protocol. Our focus is on security-first development, leveraging audited libraries like OpenZeppelin and rigorous internal testing to mitigate risks before mainnet deployment.
Deliver a battle-tested, gas-optimized contract suite in as little as 2-4 weeks.
- Standard & Custom Tokenomics:
ERC-20,ERC-721,ERC-1155, and bespoke models with vesting, minting controls, and multi-signature treasury management. - DeFi & dApp Logic: Automated market makers (AMMs), staking pools, lending protocols, and governance systems.
- Security & Compliance: Pre-audit code reviews, integration with monitoring tools like
Forta, and patterns for regulatory considerations (e.g., transfer pausability, allowlists).
tech-stack
TRUST BY DESIGN
Engineered with Proven, Secure Standards
Our reputation and verification systems are built on battle-tested foundations, ensuring reliability, security, and seamless integration for your nonprofit or Web3 platform.
01
Formal Verification & Audits
Core logic is formally verified using K framework and audited by leading security firms like Trail of Bits. We deliver mathematically proven correctness for critical reputation calculations.
0
Critical Issues Post-Audit
100%
Core Logic Coverage
02
OpenZeppelin Standards
Built on secure, upgradeable contract patterns using OpenZeppelin libraries (ERC-1967, UUPS). Ensures future-proofing and mitigates risks of common vulnerabilities.
ERC-20/721/1155
Token Standards
Gas-Optimized
Deployment
04
Zero-Knowledge Proofs (ZKPs)
Implement privacy-preserving verification with zk-SNARKs (Circom). Allows donors to prove eligibility or contributions without exposing sensitive data.
< 200ms
Proof Generation
~45k
Gas Cost per Verify
05
Multi-Chain Deployment Ready
Architected for EVM compatibility (Ethereum, Polygon, Arbitrum) and non-EVM chains (Solana, NEAR). One codebase, deployable across your target ecosystems.
5+
Supported Chains
< 1 week
Cross-Chain Port
On-Chain Reputation & Verification
Technical & Strategic Questions
Answers to common questions from CTOs and founders evaluating our nonprofit verification system development services.
Our standard engagement follows a 4-phase process: Discovery & Scoping (1 week), Architecture & Smart Contract Development (2-3 weeks), Integration & Testing (1-2 weeks), and Deployment & Handoff (1 week). A typical end-to-end project for a custom reputation system takes 5-7 weeks. We provide a fixed-price quote and detailed sprint plan after the initial discovery call.
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