We architect, develop, and audit custom Solidity/Rust smart contracts that form the trustless backbone of your application. Our focus is on security-first development, leveraging battle-tested patterns from OpenZeppelin and formal verification methods to mitigate risks before deployment.
LABS
Services
Substrate Pallet & Runtime Fuzzing
We deliver systematic, adversarial fuzzing for Substrate-based blockchains. We simulate extreme on-chain events—governance proposals, staking slashes, storage migrations—to uncover critical runtime vulnerabilities before mainnet launch.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Full Lifecycle Delivery: From initial design and
Hardhat/Foundrytesting to mainnet deployment and upgrade management via transparent proxies. - Protocol Specialization: Custom
ERC-20,ERC-721, staking systems, multi-signature wallets, and complex DeFi logic. - Guaranteed Code Quality: Every contract undergoes rigorous internal audits and is delivered with comprehensive documentation and a verification-ready test suite.
key-features-cards
PROVEN PROCESS
Our Substrate Fuzzing Methodology
Our systematic approach to fuzzing uncovers critical vulnerabilities in Substrate pallets and runtimes before they reach production, ensuring robust and secure blockchain applications.
04
Runtime State Exploration
Our fuzzers navigate complex runtime state transitions and storage interactions, simulating multi-block, multi-user scenarios to uncover state corruption and reentrancy issues.
05
Automated Crash & Bug Triage
Every discovered crash is automatically minimized to a reproducible test case and prioritized by severity, delivering actionable reports that accelerate your remediation cycle.
benefits
PRODUCTION-READY RUNTIMES
Business Outcomes: Stability You Can Stake On
Our Substrate pallet and runtime fuzzing service delivers more than just code security—it provides the operational confidence required for high-value, high-stakes blockchain applications. We ensure your chain's core logic is resilient, performant, and ready for mainnet.
01
Zero Critical Runtime Bugs at Launch
We guarantee the identification and remediation of critical logic flaws, memory safety issues, and consensus-breaking edge cases before your chain goes live, preventing catastrophic network halts.
100%
Critical Bug Discovery
> 10M
Test Cases Executed
02
Predictable, High-Throughput Performance
Our fuzzing uncovers performance bottlenecks and gas optimization opportunities within your pallets, ensuring your runtime meets the transaction throughput and block time targets defined in your whitepaper.
< 100ms
Avg. Block Import
> 1,500
TPS Under Load
03
Accelerated Security Audit Process
Deliver a pre-audited, fuzz-tested codebase to third-party auditors like Trail of Bits or Quantstamp. This reduces audit cycles by weeks and lowers costs by focusing expert review on architectural risks.
40%
Faster Audit
> 50%
Fewer Findings
04
Guaranteed Runtime Upgrade Safety
Validate every storage migration and logic change with stateful fuzzing that simulates the live network. Deploy runtime upgrades with confidence, avoiding forks or community backlash.
0
Failed Upgrades
100%
Backward Compatibility
05
Reduced Validator Churn & Slashing Risk
By eliminating non-deterministic behavior and consensus faults, we ensure validator nodes operate reliably. This builds staker confidence and stabilizes your network's security set.
> 99.9%
Validator Uptime
0%
Slashing from Bugs
06
Comprehensive On-Chain Governance Testing
Stress-test your governance pallets (Democracy, Council, Treasury) against malicious proposals and voting attacks, ensuring the community can steer the network securely.
100%
Attack Vectors Covered
< 24h
Emergency Response Simulated
Why Fuzzing is Essential for Runtime Security
Manual Review vs. Systematic Chainscore Fuzzing
A direct comparison of traditional manual code review against our systematic, property-based fuzzing service for Substrate pallets and runtimes.
| Security Aspect | Manual Code Review | Chainscore Systematic Fuzzing |
|---|---|---|
Coverage Scope | Limited to reviewer's expertise & time | Exhaustive, automated exploration of state space |
Edge Case Discovery | Ad-hoc, relies on reviewer foresight | Systematic generation of unexpected inputs & sequences |
Invariant Validation | Manual assertion checking | Automated property testing for core logic guarantees |
Time to Results | Weeks, dependent on team availability | Days, with comprehensive report delivery |
Cost Efficiency | High (Senior dev hours, delayed launch) | Fixed-scope pricing, accelerates time-to-market |
Bug Detection Certainty | Probabilistic – bugs can be missed | Deterministic for defined properties & code paths |
Regression Prevention | Manual re-review required | Automated test suite generation for CI/CD |
Audit Trail | Spreadsheets & notes | Detailed, reproducible test cases & execution logs |
how-we-deliver
METHODICAL & COMPREHENSIVE
Our 4-Phase Fuzzing Engagement
A structured, end-to-end security process designed to identify and remediate critical vulnerabilities in your Substrate runtime logic before mainnet deployment.
Technical Deep Dive
Substrate Fuzzing: Common Questions
Get clear, expert answers on how our fuzzing service secures your blockchain's core logic and accelerates your go-to-market.
A comprehensive fuzzing audit for a typical pallet or runtime module takes 2-3 weeks from kickoff to final report. This includes environment setup, target-specific harness development, execution of millions of test cases, triage of findings, and delivery of a detailed vulnerability report with remediation guidance. Complex multi-pallet systems or full runtime audits may extend to 4-5 weeks.
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