Celestia is the first blockchain network designed specifically to address the "Data Availability" problem. It serves as a base layer for other blockchains (rollups) to plug into. By stripping away smart contract execution, Celestia aims to maximize the bandwidth available for data storage. Its core technology, Data Availability Sampling (DAS), allows users to verify that transaction data has been published without running a full node, a feature designed to keep the network decentralized even as block sizes grow.

The network has followed a roadmap focused on aggressively scaling block size ("The Road to 1GB Blocks"):

Matcha Upgrade (Sept 2025): The network successfully activated the Matcha upgrade. This update increased the maximum block size to 128MB, a critical step toward the network's 1GB goal. This capacity expansion allows the network to support dozens of high-throughput rollups simultaneously without fee spikes.

Lotus Upgrade (May 2025): Earlier in the year, the Lotus upgrade introduced native TIA interoperability features and adjusted the inflation schedule, reducing the rate of new token issuance in accordance with the protocol's disinflationary policy.

Lazybridging (July 2025): The ecosystem introduced Lazybridging, a zero-knowledge (ZK) interoperability framework. This allows assets to move between Celestia rollups and other ecosystems (like Ethereum) with reduced trust assumptions, utilizing ZK proofs to verify state transitions.

The TIA token serves as the economic fuel for the modular stack:

Blobspace Fees: Rollups pay TIA to publish data blobs to Celestia. The fee market is designed to be dynamic, responding to demand for block space.

Bootstrapping: Developers launching new rollups can use TIA as a native gas token, avoiding the need to issue their own token immediately.

Staking: TIA holders stake their tokens to validators to secure the network. Staking rewards are determined by network parameters and the current inflation rate.

Architecture: Modular Data Availability Layer

Consensus: CometBFT (Proof-of-Stake)

Key Feature: Data Availability Sampling (DAS) & Erasure Coding

Token Standard: Native TIA (Cosmos-based)

Total Supply: Inflationary (Starting at 8%, decreasing annually)