Architecture

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Crawler

• The crawler node is responsible for fetching and filtering data from multiple blockchains, specifically focusing on identifying Dojima cross-chain transactions.
• It operates in conjunction with a Hermes node, connected via a secure bridge. This enables a secure and optimized way to transfer filtered transactions to the Dojima cross-chain protocol.
• The crawler node interacts with the network by accessing data from operator gateway servers, ensuring decentralization and efficiency.

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Operator

• Operators are essential participants in the Ragno Network. They host nodes from blockchains of their choice as part of the decentralized infrastructure.
• Operators must stake a minimum number of $DOJ tokens to become part of the network.
• They are rewarded in $DOJ tokens based on their contributions, particularly the data they provide to the Dojima cross-chain protocol.

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Operator dashboard

• The Operator Dashboard is a critical tool that enables operators to manage their nodes and monitor their performance.
• Key functionalities include:
  • Registering new nodes.
  • Monitoring node health and performance metrics.
  • Tracking rewards earned through participation in the network.
• Operators can securely log in using their private keys and import nodes hosted elsewhere to earn additional rewards by contributing to the Dojima cross-chain protocol.

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Operator gateway server

• Once an operator becomes part of the network by staking, an operator gateway server is automatically set up.
• This gateway server acts as a secure intermediary between the operator’s nodes and the crawler nodes.
• Key functionalities of the gateway server include:
  • Authenticating requests from crawler nodes to fetch block data.
  • Verifying signatures and mapping public keys with pairing lists.
  • Rate limiting, authentication, and caching to ensure efficient and fair access to the data.
• The gateway server provides a reliable mechanism for operators to control access to their node resources while still contributing data to the Ragno Network.

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Working of the above setup

• Hermes Chain manages the identities and operations of all actors (operators and crawlers) within the cross-chain protocol.
• Operators register their nodes on the Hermes chain, while crawler nodes interact with the operators to fetch necessary data from the blockchains.
• Every 200 blocks, Hermes maps crawlers to operators using a Pairing List (PL):
  • Each crawler submits a PL, which is aggregated and finalized by Hermes.
  • The final PL is fetched by the crawlers, who can then request block data from the assigned operator servers.
• Data Flow:
  • Crawlers can only request data from operators they are mapped to via the PL.
  • Once crawlers fetch the data, they filter for Dojima cross-chain transactions.
  • These filtered transactions are batched and sent back to the Hermes chain for further processing.
• Rewards: Operators claim their rewards for providing data, with the reward amount calculated based on the compute units they contribute to the network.