Buy & Swap Celestia (TIA)

Paying for blobspace

Celestia's documentation explains that rollup developers submit PayForBlobs transactions to publish data on the network, with the fee denominated in TIA.

As of version 6, a single transaction can carry up to 8 MiB of data. That gives rollups a clear, predictable unit to plan around when they post their data.^{[3], [12]}

A token rollups can adopt

The documentation also notes that developers can use TIA as the gas token and currency of their own rollup, instead of launching a new token from scratch.

That can shorten the path from idea to working chain, since users already know the asset.^[4]

Security through staking

Celestia is a proof-of-stake blockchain built on CometBFT and the Cosmos SDK. Its documentation describes an initial validator set of 100.

TIA holders stake to take part in consensus and secure the network, as Celestia's own site explains. Holders who do not run a validator can delegate to one.^{[5], [10]}

Issuance that steps down

TIA's supply at genesis was one billion tokens, with six decimal places. Issuance started at 8% a year and is set to decrease over time towards a long-term rate of 1.5%.

The network has already used governance to adjust that path. The documentation records that the v4 Lotus upgrade, approved as CIP-29 in July 2025, lowered the inflation rate from about 7.2% to about 5.0%.^{[1], [2], [6], [7]}

Holders have a vote

Celestia's documentation states that TIA holders, not only stakers, can propose and vote on changes to a set of network parameters.

A community pool receives 2% of block rewards, and holders can vote to fund projects from it. Changes such as the Lotus upgrade show that process in use.^{[8], [9], [7]}

Why a separate data layer helps

When every chain has to publish and store all of its own data, each new chain must also attract enough validators to secure that data. Celestia offers a shared alternative. Rollups keep control of how their transactions run, while a single proof-of-stake network takes care of publishing the data so anyone can check it.

That arrangement lets a small team launch a chain without first building a large validator set of its own. Fees for data are paid in TIA through PayForBlobs transactions, and the same token secures the network that stores the data. The link between using the service and securing it is direct and easy to follow.

For users, the benefit is indirect but real: rollups built this way can publish their data in a place that many independent validators keep available, which supports anyone who wants to verify what happened on those chains.^{[3], [5], [10]}

How demand for data grows

Celestia is built for many rollups sharing one data layer, and the amount of TIA staked and the volume of blob data both change continuously. How that demand will develop as more rollups launch is UNKNOWN from public sources.

It is not predicted here; the live figures are only visible on the network itself.^{[3], [5]}