What is Celestia (TIA)?

Deep Dive

1. Purpose and design

Many blockchains handle transaction processing, consensus, and data storage together. Celestia focuses on consensus and data availability: it helps ensure transaction data is published and can be checked, while another chain handles the transactions themselves. This modular approach is intended to let developers build blockchains with their own rules and execution environments. Celestia

2. How data availability works

A rollup is a system that processes transactions outside another blockchain and relies on a network to publish the data needed to verify them. Celestia uses data availability sampling, which lets light nodes check small portions of block data instead of downloading every block in full. This is designed to make verification more accessible as data capacity grows. Celestia’s code

3. What TIA does

TIA is used to pay fees for publishing data to Celestia and to stake in the network’s proof of stake system, which helps secure it. TIA can also be used in governance. Celestia guide

Conclusion

Celestia is shared data and consensus infrastructure for separately built blockchains; TIA is the token used to pay for and help secure that infrastructure. How might modular chains use Celestia as they scale?