Celestia
Modular blockchain — layered architecture where Celestia provides only Data Availability.
Celestia is a pioneering modular blockchain that separates consensus and Data Availability (DA) from transaction execution — a revolutionary architectural approach.
Monolithic vs Modular blockchain:
Monolithic (Bitcoin, old Ethereum):
•Single chain: consensus + execution + DA + settlement
•All nodes do everything
•Limited scalability
Modular (Celestia):
•Celestia: consensus + Data Availability
•Rollup: execution
•Ethereum/Celestia: settlement
What Celestia does:
•Receives blocks from rollups
•Guarantees data is available
•Light clients can verify DA without downloading all data
•Data Availability Sampling (DAS) — random sampling of block chunks
TIA token:
•Payment for DA namespace
•Staking for consensus
•Governance
Who uses Celestia:
•Rollups that don't want Ethereum DA costs
•Eclipse, Manta Pacific, Caldera rollups
•Cheaper DA than Ethereum EIP-4844 blobs
Why it matters:
•"Rollup-centric roadmap" of blockchain's future
•Celestia is infrastructure for that future