3.1 Core Blockchain Technology Selection and Optimization Strategy for RAC
RealAsset Chain (RAC) adopts a forward-looking approach in its blockchain architecture, aiming to meet the demanding requirements of Real World Asset (RWA) management—including high performance, scalability, security, and cross-chain interoperability. As a foundational infrastructure for RWA tokenization, RAC is built upon Layer-2 Rollup scalability solutions, combined with a modular blockchain architecture, zero-knowledge proof integrations, secure consensus mechanisms, and cross-chain bridge protocols to form a high-performance, low-cost, and extensible blockchain framework.
1. Why Choose the Layer-2 Rollup Architecture?
Layer-2 is a critical scalability solution developed to overcome the performance limitations of Layer-1 blockchains. Among the various Layer-2 technologies, Rollup is one of the most mature and widely adopted options. Its core mechanism involves processing transactions off-chain and submitting only the final transaction states or proofs to the Layer-1 chain. This greatly increases throughput while significantly reducing gas fees, making it ideal for high-frequency transaction environments like DeFi and RWA.
RAC primarily considers two Rollup models:
Optimistic Rollup: Assumes off-chain transactions are valid by default and only verifies them in case of disputes using fraud proofs.
Zero-Knowledge Rollup (ZK-Rollup): Generates cryptographic proofs for each batch of transactions, offering enhanced data compression and instant finality without requiring dispute resolution.
RAC initially implements the more Ethereum-compatible Optimistic Rollup to enable rapid deployment within the Ethereum ecosystem, with plans to transition to ZK-Rollup for enhanced privacy and scalability.
2. Modular Blockchain Architecture
RAC incorporates a modular design, logically separating the blockchain into four functional layers:
Consensus Layer: Built upon a secure Layer-1 chain (e.g., Ethereum or Cosmos Hub) to ensure network security.
Settlement Layer: Responsible for recording and verifying transaction states submitted by Layer-2.
Execution Layer: Operates the RAC Virtual Machine (RAC-VM) to execute smart contracts and manage asset mapping logic.
Data Availability Layer: Ensures the integrity of state data through off-chain storage and distributed node networks.
This modular design ensures system security while enabling flexible deployment of different asset types, facilitating long-term platform maintainability and scalability.
3. Zero-Knowledge Proof and Privacy Enhancements
To protect sensitive data associated with high-value assets, RAC integrates advanced zero-knowledge proof (ZKP) technologies, including zk-SNARKs and zk-STARKs. These techniques encrypt asset states and transaction content while maintaining verifiability, thereby protecting user balances, transaction amounts, and identity information on-chain—meeting the privacy demands of high-net-worth individuals and institutions.
RAC is also developing a selective disclosure mechanism, allowing authorized regulators to audit specific transactions, thereby achieving a balanced model of "compliance through privacy."
4. Cross-Chain Bridges and Interoperability
One of the core requirements of RWA tokenization is seamless cross-chain asset mobility. RAC supports asset transfers across major networks such as Ethereum, BSC, Polygon, and Cosmos through integration with IBC (Inter-Blockchain Communication) and bridge components.
RAC implements the following cross-chain strategies:
Atomic Swaps to ensure transactional security.
Multisig and Validator-Based Consensus to maintain decentralized control of bridges.
State Synchronization Mechanisms to ensure consistent asset mappings across networks.
This robust design lays the foundation for scalable multi-chain asset management and trading scenarios.
5. Security Architecture and Anti-Attack Mechanisms
RAC incorporates multi-layered security measures within its tech stack:
Formal verification and multiple rounds of smart contract audits.
Replay attack prevention and dual-signature verification.
Transaction rate-limiting and abnormal behavior detection.
Randomized node distribution and Sybil resistance models.
In addition, RAC offers a bug bounty program and engages a community-driven white-hat security initiative to encourage proactive vulnerability discovery and resolution.
6. Future Technical Roadmap
Over the next 3–5 years, RAC will implement the following technological advancements:
Full migration to ZK-Rollup for private, instant settlement.
Deployment of modular Rollup stacks for asset-specific chain customization.
Adoption of EigenDA or Celestia for high-throughput data availability.
Collaboration with RWA standardization bodies to promote industry-wide token structure standards.
Through the adoption of Layer-2 Rollup scalability, modular blockchain design, and a comprehensive focus on privacy, security, and interoperability, RAC has built a next-generation RWA infrastructure. This positions the platform to serve as a high-performance foundation for tokenizing real-world assets globally and sets the stage for large-scale deployment in compliant institutional finance.
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