Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy audit-ready smart contracts for DeFi, NFTs, and enterprise protocols. Our engineers specialize in Solidity 0.8+, Rust (Solana), and Vyper, implementing OpenZeppelin standards and gas-optimized patterns from day one.
Deliver a secure, functional MVP in as little as 2-4 weeks.
We execute protocol upgrades and tax code migrations with zero downtime and full asset security. Our battle-tested process ensures compliance with the latest standards while preserving user trust and protocol integrity.
Every migration is preceded by a full security audit of the new tax logic. We employ formal verification and static analysis to eliminate vulnerabilities before deployment, ensuring your upgrade is resilient to exploits.
We design and implement migration strategies that allow users to transition seamlessly. Our phased deployment and state synchronization ensure no service interruption and no loss of user funds or data.
We ensure your new token contracts are fully compliant with the latest EIP standards (e.g., ERC-20, ERC-721, ERC-1155) and implement required interfaces for seamless integration with wallets, DEXs, and explorers.
We optimize new contract logic for minimal gas consumption, reducing transaction costs for your users. A detailed cost-benefit analysis is provided for every proposed change.
Our responsibility extends beyond deployment. We provide 30 days of post-migration monitoring, verification scripts, and a full attestation report confirming the integrity of all migrated state and balances.
We prepare comprehensive technical documentation for the new tax logic, including a whitepaper annex and a developer guide, to support your compliance and stakeholder communication efforts.
Our migration service delivers verifiable results that protect your protocol's legal standing and technical integrity, ensuring a seamless transition to new blockchain versions.
We deliver a full compliance report mapping your original tax logic to the upgraded codebase, ensuring no loss of regulatory adherence. This includes automated test suites that validate every tax rule against the new EVM.
We provide a step-by-step migration playbook with pre- and post-upgrade verification steps. This eliminates ambiguity, reduces engineering overhead, and prevents costly rollbacks due to unexpected behavior.
Beyond a 1:1 port, we optimize the migrated tax logic for the new chain's fee market and state access patterns. This reduces operational costs and improves user experience post-upgrade.
Every migrated module undergoes a dedicated security review focused on upgrade-specific vulnerabilities (e.g., storage collisions, delegatecall risks). We integrate findings from original audits to maintain security posture.
A detailed comparison of the time, cost, and risk involved in executing a major blockchain upgrade tax code migration.
| Key Factor | Manual In-House Migration | Chainscore Managed Migration |
|---|---|---|
Time to Production | 3-6 months | 4-8 weeks |
Upfront Development Cost | $150K - $400K+ | $50K - $150K |
Security & Audit Overhead | High (Requires external audit) | Included (Pre-audited patterns & final audit) |
Team Bandwidth Drain | Full-time for 2-3 senior engineers | Minimal (Your team provides domain context) |
Risk of Critical Bug | High (Untested custom logic) | Low (Battle-tested migration framework) |
Post-Migration Support | Your responsibility | 90-day warranty & optional SLA |
Guaranteed Success SLA | None | 99.9% uptime & data integrity guarantee |
Total Cost of Ownership (Year 1) | $200K - $500K+ | $65K - $180K |
Our proven, phased approach ensures a seamless transition from your legacy tax logic to a modern, on-chain system with zero downtime and audited security.
We conduct a comprehensive audit of your existing tax code, map all business logic, and design a modular smart contract architecture. This phase establishes the technical blueprint and risk assessment for the entire migration.
Our engineers implement the migration using Solidity 0.8+ and OpenZeppelin libraries. Every function is paired with exhaustive unit tests (95%+ coverage) to ensure mathematical accuracy and gas efficiency from day one.
The complete codebase undergoes a formal security review. We deploy to a staging environment that mirrors mainnet, enabling integration testing, dry-run simulations, and final validation with your team before go-live.
We execute the final migration with a verified, multi-sig deployment script. Post-launch, we provide 30 days of enhanced monitoring and support to ensure system stability and immediate issue resolution.
We specialize in seamless, secure migrations for the most widely adopted blockchain standards. Our battle-tested processes ensure zero downtime and full compatibility with your existing ecosystem.
Answers to common questions from CTOs and technical leads planning a major blockchain upgrade.
Our standard 4-phase methodology delivers a production-ready, audited tax code in 6-8 weeks. Phase 1 (Assessment & Planning) takes 1 week. Phase 2 (Development & Migration) is 3-4 weeks. Phase 3 (Security Audit & Testing) requires 2 weeks. Phase 4 (Deployment & Handoff) is 1 week. Complex protocols with custom logic may extend to 10-12 weeks.
Our experts will offer a free quote and a 30min call to discuss your project.