Private Chain

1. Overview

• The DRESSdio private chain is designed to manage the issuance and transactions of DP (DRESSdio Point) tokens. Based on Hyperledger Besu, an EVM-compatible blockchain platform, it seamlessly interacts with the public chain (Polygon). The private chain is engineered for high-performance transaction processing and enhanced security, with all transactions made transparent through a blockchain tracker.

2. Technical Stack Components

2.1 Core Technologies of the Private Chain

• Hyperledger Besu:

  • EVM Compatibility: Hyperledger Besu provides EVM compatibility, allowing the direct execution of smart contracts written in Solidity, facilitating smooth interaction with public chains like Polygon.

  • Consensus Algorithms: Hyperledger Besu supports PoA (Proof of Authority), IBFT 2.0 (formerly Istanbul BFT), and Clique, ensuring high-performance transaction processing and network stability.

  • Modular Architecture: Hyperledger Besu offers a modular architecture, enhancing network scalability and management efficiency.

• Smart Contracts:

  • DP Token Management: Smart contracts written in Solidity handle the issuance, swapping, and transaction verification of DP tokens. DP is managed on the private chain based on the locking and unlocking state of DRESS tokens on the public chain.

  • EVM-Based Chaincode: Hyperledger Besu uses EVM-compatible chaincode to automate the issuance and swpping of DP tokens and implement interaction with the public chain.

2.2 DP Token Issuance and Management

• DP Issuance and Swapping: DP tokens are issued or burned on the private chain based on the locking or unlocking state of DRESS tokens on the public chain, handled automatically by smart contracts on Hyperledger Besu.

• DP Liquidity Management: For stable management of DP liquidity, DRESSdio manage its own initial DRESS supply and the volume of DP exchanged through it without a separate liquidity provider. DRESSdio also transparently disclose the liquidity supplied and the history of DP exchange on the platform through private chain scans. This allows anyone to check the balance and transaction history of DRESS liquidity supplied to the platform and DPs exchanged.

• Transaction Verification and Processing: All transactions are verified by nodes within the network and included in blocks through the selected consensus algorithm. All transaction data is transparently recorded and accessible via the blockchain tracker.

2.3 Transaction Tracker (Blockchain Explorer)

• Purpose of the Transaction Tracker: The transaction tracker monitors all DP token transactions on the private chain in real time, providing users with transparent transaction information to ensure high trust.

• Components:

  • Data Collection and Indexing: All transaction data from the private chain is collected and indexed using high-performance search engines like Elasticsearch, enabling fast and efficient user searches.

  • User Interface: The transaction tracker offers a web-based, user-friendly interface. Users can search for related transactions by entering specific transaction IDs, wallet addresses, or block numbers.

  • Real-Time Data Feed: The transaction tracker automatically updates with the latest transaction information in real time, allowing users to monitor all activities on the private chain.

• Security and Data Integrity

  • Encrypted Data Transmission: All data transmission between the transaction tracker and the private chain is protected via SSL/TLS encryption.

  • Integrity Verification: The integrity of the collected transaction data is verified through hash chains, allowing immediate detection of any data alteration.

• Enhanced Transparency: The transaction tracker is publicly accessible to all users, ensuring transparency of all transactions on the private chain and building user trust.

2.4 Security Mechanisms

• Node Authentication and Authorization: All nodes and users in the private chain are authenticated through a Certificate Authority (CA), and each node and user can access the network only within their authorized permissions.

• Data Privacy: Hyperledger Besu provides the ability to separate public and private transactions and encrypt transactions to protect sensitive data. This ensures that critical data within the private chain is securely protected.

• Consensus Algorithms: Hyperledger Besu’s various consensus algorithms (PoA, IBFT 2.0, Clique, etc.) ensure the reliability and stability of the network. Each consensus algorithm is designed to enhance transaction processing speed and security.

• Smart Contract Security: EVM-compatible smart contracts are maintained securely through regular audits and security patches. All updates are first verified on the testnet before being deployed to the mainnet.

3. Operations and Maintenance

• Monitoring and Log Management: Tools like Grafana and Prometheus are used for real-time network activity monitoring, and all transaction logs are stored in a central log system for auditing and troubleshooting.

• Update and Patch Management: The private chain software is regularly updated and patched to maintain security and performance, with important updates applied using a rolling update method to prevent network downtime.

• Scalability Plans: The network is designed to easily scale by adding additional nodes as usage increases, and new features can be integrated into smart contracts as needed.