We architect, develop, and deploy custom smart contracts for tokens, DeFi protocols, NFTs, and DAOs. Our development lifecycle is built around security-first principles, incorporating formal verification and multiple audit stages before mainnet deployment.
LABS
Services
Immutable Invoice Audit Trail Service
Chainscore delivers a dedicated service that cryptographically hashes and anchors every invoice lifecycle event to a public or private blockchain, creating an immutable, verifiable record for auditors and stakeholders.
Chainscore © 2026
overview
SECURE & AUDITED
Smart Contract Development
Production-ready smart contracts built with enterprise-grade security and gas optimization.
- Full-Stack Expertise:
Solidity/Vyperfor EVM chains,Rustfor Solana/Polkadot,Movefor Aptos/Sui. - Security Standard: Contracts are built with OpenZeppelin libraries and undergo peer review + automated analysis.
- Gas Optimization: We achieve up to 40% lower gas costs through efficient storage patterns and assembly-level tuning.
- Delivery Model: From MVP in 2 weeks to complex protocol architecture with full documentation and test suites.
We don't just write code; we deliver audit-ready, maintainable systems that form the secure backbone of your Web3 application.
key-features-cards
BUILT FOR ENTERPRISE
Core Technical Capabilities
Our immutable audit trail service delivers verifiable, tamper-proof transaction records. We provide the technical foundation for regulatory compliance, automated reconciliation, and enhanced stakeholder trust.
benefits
TANGIBLE RESULTS
Business Outcomes for FinTech & Enterprises
Our immutable invoice audit trail service delivers measurable improvements in operational efficiency, compliance, and trust. See the specific outcomes you can expect.
01
Eliminate Invoice Disputes & Fraud
Every invoice is cryptographically sealed on-chain, creating a single source of truth. This eliminates reconciliation errors and prevents fraudulent alterations, reducing dispute resolution time by over 90%.
>90%
Faster Dispute Resolution
100%
Tamper-Proof Record
02
Automated Regulatory Compliance
Our system generates a verifiable, chronological audit trail that meets the strictest standards for financial record-keeping (e.g., SOX, GDPR). Automate compliance reporting and pass audits with ease.
70%
Reduced Audit Prep Time
24/7
Proof of Compliance
03
Accelerated Payment Cycles
With indisputable invoice provenance, approval workflows are streamlined. Trust in the data eliminates manual verification steps, enabling faster approvals and settlements.
50%
Faster Approvals
Days → Hours
Settlement Time
04
Enhanced Supply Chain Trust
Provide your vendors and partners with real-time, permissioned visibility into invoice status on an immutable ledger. This builds trust, improves relationships, and enables new financing models.
Real-Time
Partner Visibility
Permissioned
Data Access
05
Future-Proof Data Portability
Your audit trail is built on open standards (IPFS for storage, Ethereum/Polygon for verification). Avoid vendor lock-in and ensure your critical financial data remains accessible and usable for decades.
Open Standards
No Vendor Lock-in
Decades
Data Longevity
06
Enterprise-Grade Security & Uptime
Deployed on our battle-tested infrastructure with 99.9% uptime SLA. All smart contracts are audited by leading security firms, and we implement SOC 2 Type II controls for enterprise clients.
99.9%
Uptime SLA
SOC 2 Type II
Compliance
Choose the right level of support for your audit trail
Phased Implementation Tiers
Select a tier based on your team's technical maturity, compliance requirements, and desired time-to-market. All tiers include our core immutable audit trail smart contract system.
| Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Immutable Audit Trail Core | |||
Custom Invoice Schema Design | Basic | Advanced | Custom |
Multi-Chain Deployment (EVM) | 1 Network | Up to 3 Networks | Unlimited |
Smart Contract Security Audit | Automated Scan | Manual Review + Report | Full Audit + Remediation |
Integration Support | Documentation Only | Technical Guidance | Dedicated Engineer |
Uptime & Performance SLA | 99.5% | 99.9% | |
Incident Response Time | Best Effort | 8 Business Hours | 1 Hour |
Compliance Reporting Dashboard | |||
On-Chain Data Archival | 30 Days | 1 Year | 7 Years + Legal Hold |
Implementation Timeline | 2-3 Weeks | 4-6 Weeks | 8-12 Weeks |
Starting Price | $15,000 | $45,000 | Custom Quote |
Strategic Decision Analysis
Build vs. Buy: Immutable Audit Trail
A detailed comparison of the costs, risks, and timeframes associated with developing an in-house solution versus leveraging Chainscore's proven service.
| Key Factor | Build In-House | Chainscore Service |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $75K |
Smart Contract Security | High Risk (Requires External Audit) | Low Risk (Pre-Audited, Battle-Tested) |
Ongoing Maintenance & Updates | Dedicated DevOps & Dev Team | Fully Managed by Chainscore |
Infrastructure Uptime SLA | Your Responsibility (Typically 95-99%) | 99.9% Guaranteed |
Protocol Upgrades (e.g., EIPs) | Manual, Costly Integration | Automated, No Additional Cost |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $50K - $150K |
Expertise Required | Senior Solidity Devs, DevOps, Auditors | Your Integration Team Only |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology
Our structured, four-phase approach ensures your immutable invoice audit trail is delivered on time, within budget, and with enterprise-grade security.
01
Discovery & Architecture
We conduct a technical deep-dive to map your invoice workflows onto blockchain primitives. Deliverables include a detailed architecture spec, gas cost analysis, and a phased rollout plan.
1-2 weeks
Duration
100%
Requirements Locked
02
Smart Contract Development
Our team builds your core audit trail logic using Solidity 0.8+ with OpenZeppelin libraries. Every contract undergoes internal review against common vulnerabilities before audit.
OpenZeppelin
Security Standard
2-4 weeks
Development Time
04
Deployment & Integration
We handle the secure deployment to your chosen EVM network (Polygon, Arbitrum, Base) and provide integration SDKs & APIs for your existing ERP or accounting systems.
< 1 week
Go-Live
99.9% SLA
Infrastructure Uptime
Immutable Invoice Audit Trail
Frequently Asked Questions
Get clear answers about our blockchain-based invoice verification service, from implementation to security.
We deploy a custom smart contract for your business on a blockchain like Polygon or Arbitrum. Your existing invoicing system (e.g., QuickBooks, SAP) sends invoice hashes via a secure API. The smart contract permanently records these hashes, creating a tamper-proof, timestamped ledger. Authorized parties can then verify any invoice's authenticity and history in seconds via a dashboard or API 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