$TIA
The world's first modular blockchain

introduction


Celestia Structure

Celestia features a modular architecture that aims to solve the scalability and flexibility issues faced by current blockchains.

The modular structure is based on several layers:

1. Consensus Layer

• Its function is to collect messages and data and organize them for later publication.

2. Data Availability Layer

• Receives ranked data from the consensus layer and publishes it to be available to users and applications.

3. Execution Layer

• Responsible for calculations and processing of published data to ensure balance.

4. Settlement Layer

• Acts as a bridge between different implementation layers, allowing interaction between them and verification of zk-proofs.

The difference between traditional blockchain and standard blockchain

• Traditional blockchains (Monolithic Blockchains) rely on managing all basic tasks internally, such as processing transactions, ensuring their validity, and ordering them.

• Whereas standard blockchains rely on distributing these tasks across different networks, which achieves more scalability without sacrificing security or decentralization.

Different Blockchain Formation


• Monolithic Blockchains: Full nodes and processors manage all operations internally.

• Celestia: Only manages consensus and data availability, while off-chain executions are done using techniques such as roll-ups.

• Sovereign roll-ups: Enable developers to update their blockchain rules independently without requiring permission from higher networks.

Advantages of modular architecture


1. Scalability:

• Specialized nodes allow for resource separation (e.g., favoring bandwidth over computational power).

• Nodes do not need to execute all transactions to confirm their validity thanks to techniques such as Data Availability Sampling (DAS) and validity/validity proofs such as zk-proofs.

2. Flexibility:

• Allows you to easily experiment with different types of execution environments.

Quantum Gravity Bridge

It is one of the most complex functions of Celestia. It allows Layer 2s on Ethereum to store data on Celestia instead of Ethereum, reducing gas costs and providing faster data availability.

• Celestia embeds Layer 2 data into its blocks, then sends it to Ethereum via the Quantum Gravity Bridge, which verifies the data signatures.

• This approach provides high security and lower cost compared to existing systems.

Sources



1. Celestia “Quantum Gravity Bridge” Blog


2. Celestia Technology Overview


3. Modular Summit Livestream


4. What Is Data Availability