Secure, production-ready smart contracts built by Web3 specialists.
We architect and deploy custom smart contracts that form the backbone of your protocol. Our development process is built for security and scale, delivering audit-ready code from day one.
We ensure your core logic is immutable, secure, and performs as intended.
Solidity/Rust architecture to deployment on EVM/Solana/Cosmos.OpenZeppelin standards, comprehensive unit testing, and formal verification.UUPS, Transparent) for future-proofing.Our team delivers production-grade contracts in 2-4 weeks, backed by a 99.9% uptime SLA post-deployment. We focus on the technical heavy lifting so you can focus on product and growth.
Our cross-chain storage attestation service is built on a foundation of battle-tested protocols and security-first engineering, delivering the reliability and interoperability your application requires.
Integrate zk-SNARKs or zk-STARKs for privacy-preserving attestations. We design circuits that prove data integrity without revealing the underlying information, ideal for confidential DeFi or identity solutions.
Every attestation module and smart contract undergoes rigorous security review. We follow OpenZeppelin standards and partner with leading audit firms to deliver production-ready, secure code.
Custom attestation contracts built with Solidity 0.8+ and advanced gas optimization techniques, reducing on-chain verification costs by up to 40% compared to naive implementations.
Comprehensive dashboard and API for monitoring attestation status, storage health, and chain connectivity. Get instant alerts for any synchronization failures or SLA breaches.
Our cross-chain storage attestation service delivers measurable infrastructure advantages, reducing technical debt and accelerating your product roadmap.
Cryptographically verifiable proofs for all cross-chain data, enabling trustless validation by users and partners. Eliminates reliance on centralized oracles for critical state data.
Deploy a production-ready cross-chain data layer in weeks, not months. Our managed service handles the complexity of attestation logic, consensus, and relayers.
Eliminate the cost and complexity of building and maintaining custom attestation networks, relayers, and fraud-proof systems. Pay only for the attestations you use.
Create a single source of truth for your application's state across Ethereum, L2s, and alternative L1s. Enables seamless user experiences and complex cross-chain logic.
Guaranteed service availability with robust monitoring, automatic failover, and granular access controls. Designed for financial applications requiring 24/7 uptime.
A detailed comparison of the total cost, risk, and time investment required to build a custom attestation layer versus using Chainscore's managed service.
| Key Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Security Audit Requirement | Mandatory (Additional $50K-$100K) | Included (Pre-audited Protocols) |
Ongoing Maintenance & DevOps | 2-3 Full-Time Engineers | Fully Managed by Chainscore |
Cross-Chain Protocol Support | Limited to Built Integrations | Ethereum, Polygon, Arbitrum, Optimism, Base, Solana |
Uptime & Reliability SLA | Your Responsibility (Typically < 99%) | 99.9% Guaranteed SLA |
Feature Updates & Upgrades | Manual Backports & Fork Management | Automatic, Zero-Downtime Upgrades |
Total Cost of Ownership (Year 1) | $500K - $1M+ | $80K - $200K |
Expertise Required | Cryptography, Consensus, Multi-Chain DevOps | Your Core Business Logic Only |
A structured, security-first approach to delivering production-ready cross-chain attestation systems. We focus on predictable timelines, audited code, and seamless integration.
We conduct a 1-week intensive workshop to define your data schema, attestation logic, and target chains (EVM, Solana, Cosmos). Deliverables include a technical spec and integration roadmap.
Implementation of verifier and attestation registry contracts in Solidity/Rust. Built with OpenZeppelin libraries and gas-optimized patterns for cost-efficient on-chain verification.
All core contracts undergo rigorous review. We partner with leading firms like CertiK for external audits and use tools like Slither for static analysis before deployment.
Deployment of high-availability relayers for cross-chain message passing (LayerZero, Wormhole, Axelar) and secure oracles (Chainlink, Pyth) for off-chain data attestation.
End-to-end testing on testnets with comprehensive monitoring. We manage the mainnet deployment process, including multisig setup and initial operator configuration.
Post-deployment, we provide 24/7 monitoring dashboards for attestation health, relayer status, and security alerts. Includes 6 months of included support and incident response.
Get clear answers on how we secure and verify your data across blockchains.
Cross-chain storage attestation is a service that cryptographically proves the integrity and state of data (like smart contract storage or off-chain state) on one blockchain to another. You need it to build secure, interoperable applications. It enables use cases like cross-chain governance, asset transfers with verified collateral, and decentralized oracles that trustlessly read data from other chains. Without it, your multi-chain dApp relies on centralized bridges or unverified assumptions, creating security risks and limiting functionality.
Our experts will offer a free quote and a 30min call to discuss your project.