What is Celestia? Celestia is a modular data availability blockchain. It orders and publishes blob data so that execution layers, such as rollups, can rely on that data without running their own consensus or data availability networks. Its native token, TIA, pays for blob submission and secures the network through proof-of-stake staking.
How Celestia's architecture works
Celestia separates data publication from execution. Its documentation states that it orders blobs and keeps them available while execution and settlement run on layers above it (Celestia Docs).
- Data availability sampling (DAS): Light nodes verify availability by sampling small portions of each block instead of downloading it in full. More light nodes sampling safely allows larger blocks (Celestia Docs).
- Erasure coding: Block producers encode blobs into a two-dimensional Reed-Solomon matrix and commit to every row and column.
- Namespaced Merkle trees: Block data is partitioned into namespaces, one per application or rollup, so each application can fetch and prove only its own data.
Fibre is a newer data availability protocol run by the validator set alongside Celestia L1. Celestia announced it on January 13, 2026, describing it as capable of sustaining 1 Tb/s across 500 nodes (Celestia Blog).
Primary use cases
Rollups and appchains use Celestia to publish transaction data. Rollup developers submit PayForBlobs transactions, which are paid in TIA (Celestia Docs). Rollkit, an ABCI implementation for sovereign rollups, connects directly to Celestia's data availability layer (Celestia Docs).
The Blobstream bridge, which attested Celestia data roots to EVM chains, is now legacy. Its documentation states that as of September 2026, the Succinct-operated SP1 deployments no longer receive new commitments (Celestia Docs).
Who is behind Celestia and where is it based?
Celestia was founded in 2019 by Mustafa Al-Bassam, Ismail Khoffi, John Adler and Nick White (Kraken risk disclosure). The project traces back to Al-Bassam's 2019 LazyLedger paper, which he wrote as a PhD student at University College London (CoinDesk).
Celestia Labs was incorporated as Strange Loop Labs in Liechtenstein (Celestia Blog). The Celestia Foundation is a non-profit organization based in Liechtenstein (Celestia Blog). The sources confirm Liechtenstein for both legal entities but do not establish a separate headquarters country for the team.
Funding included a $1.5 million seed round in March 2021 and a $55 million Series A and B round in October 2022, led by Bain Capital Crypto and Polychain Capital (Kraken risk disclosure). Mainnet launched on October 31, 2023 (The Block).
Tokenomics
Celestia had a total supply of 1,000,000,000 TIA at genesis (Celestia Docs). The market data shows a circulating supply of 988,068,228 TIA and a total supply of 1,180,630,008 TIA, so supply has grown beyond the genesis figure through ongoing issuance.
Genesis allocations were 26.79% to R&D and Ecosystem, 20.00% to the public allocation, 19.67% to Series A and B backers, 17.6% to initial core contributors and 15.9% to seed backers (Celestia Docs).
Inflation began at 8% annually and was set to decline by 10% per year toward a long-term rate of 1.5% (Celestia Docs). The Matcha upgrade later reduced inflation to 2.5% (Celestia Blog). The sources do not describe a deflationary burn mechanism in effect.
The market snapshot shows the token at a market cap of $467.82M (rank #158) and a 24h trading volume of $43.29M. The all-time high was $20.85, and the current price is 97.73% below it.
Consensus and network security
Celestia is a proof-of-stake blockchain built on CometBFT and the Cosmos SDK. It supports in-protocol delegation and launched with an initial validator set of 100 (Celestia Docs). Light nodes can detect if up to two-thirds of validators withhold data or produce invalid blocks (Celestia Blog).
Partnerships and ecosystem integrations
- Arbitrum Orbit: Celestia was the first modular DA network to integrate with Arbitrum Orbit and the Nitro stack, announced October 25, 2023 (Celestia Blog).
- OP Stack: A version of the OP Stack that uses Celestia for DA has been available since June 2023 (Celestia Blog).
- Eclipse and Manta Pacific: Both use Celestia for data availability (Eclipse Labs; Manta Docs).
Competitive positioning
Avail uses KZG commitments and DAS, with a similar design, but one comparison rates its economic security as lower (Eclipse Labs). EigenDA ties its security to Ethereum through restaking (Chainlink).
Celestia's stated differentiators are its light-client verification through DAS, namespace-based data retrieval and a large existing rollup ecosystem. It focuses on data availability alone and leaves execution to rollups.
Development activity and roadmap
- Lotus (v4): Released July 1, 2025, with reduced inflation and Hyperlane integration for TIA interoperability (Celestia Docs).
- Matcha (v6): Went live on mainnet on November 25, 2025, with blocks up to 128MB and inflation cut to 2.5% (Rollup Frameworks).
- v10: Testnet activation was scheduled for September 2026. It introduces Fibre for validator-operated blob availability (CIP-52).
Celestia reported an end-to-end Fibre benchmark averaging 3.07 Tb/s in October 2026 (Crouton Digital).