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What Is Celestia?

Celestia is a modular blockchain network that pioneered the concept of separating data availability from execution. Launched in October 2023, Celestia provides a specialized layer where rollups and other blockchains can publish their transaction data, verify it is available, and rely on Celestia's consensus for ordering. This modular approach allows blockchains to scale without each one needing to handle data availability on its own.

In traditional monolithic blockchains like Ethereum, a single chain handles execution (processing transactions), consensus (agreeing on order), data availability (ensuring data is accessible), and settlement (finalizing state). Celestia's insight is that these functions can be separated into specialized layers. By focusing solely on data availability and consensus, Celestia can do those jobs more efficiently and at lower cost than a general-purpose chain.

Celestia uses a technology called Data Availability Sampling (DAS). Instead of requiring every node to download all transaction data, light nodes can verify that data is available by sampling small random portions of each block. This means the network can increase throughput by increasing block sizes without proportionally increasing the resource requirements for nodes, enabling much greater scalability while maintaining decentralization.

The network uses a Proof of Stake consensus mechanism based on Tendermint (CometBFT). Validators stake TIA tokens to participate in consensus, producing and validating blocks. TIA holders can delegate to validators to earn staking rewards.

Key aspects of Celestia's design include:

  • Data Availability Sampling: Light nodes verify data availability through random sampling rather than downloading full blocks.
  • Namespaced Merkle Trees: Data from different rollups is organized into separate namespaces, so each rollup only needs to download its own data.
  • Sovereign rollups: Rollups on Celestia can define their own execution and settlement rules without being constrained by Celestia's consensus.
  • Modular stack: Developers can mix and match execution environments, settlement layers, and data availability layers.

Over 50 rollups and blockchain projects use Celestia for data availability, including both established projects and new chains. Celestia's approach has influenced the broader industry, with the term "modular blockchain" becoming a widely discussed paradigm in blockchain architecture.

TIA is the native token used for paying data availability fees, staking, and governance.

Getting Started With Celestia

Getting started with Celestia as a token holder:

  1. Step 1: Set up a Cosmos-compatible wallet such as Keplr or Leap.
  2. Step 2: Purchase TIA from a major exchange.
  3. Step 3: Transfer TIA to your wallet.
  4. Step 4: Stake TIA with a validator to earn staking rewards and secure the network.

For developers, Celestia provides tooling to deploy rollups that use Celestia for data availability, including integration with rollup frameworks like Rollkit and the OP Stack.

How to Get a Celestia Wallet?

Keplr Wallet

Keplr is the most popular wallet for Cosmos-based chains including Celestia. Available as a browser extension and mobile app, Keplr supports TIA staking, transfers, and governance participation.

Leap Wallet

Leap is another Cosmos ecosystem wallet that supports Celestia. It offers a clean interface and is available as a browser extension and mobile app.

Hardware Wallets

Ledger hardware wallets support Celestia through integration with Keplr, providing offline key storage for enhanced security.

Celestia Resources

How to Buy TIA?

TIA is available on major exchanges:

Centralized Exchanges

TIA can be purchased on Binance, Coinbase, Kraken, OKX, Bybit, and other major exchanges with fiat or crypto trading pairs.

Decentralized Exchanges

TIA can be traded on Cosmos DEXs like Osmosis using IBC transfers from other Cosmos chains.

After purchasing, transfer TIA to a self-custody wallet and consider staking to earn rewards.

Latest Celestia News

Celestia continues to grow as the leading modular data availability layer, with an increasing number of rollups and chains adopting it for DA. Key developments include growing blob data usage, network upgrades for increased throughput, and expanding integrations with major rollup frameworks.