📌 Technical Principles｜Data Availability
· Key point: Data availability means that all transaction data for a block has actually been published and is accessible to anyone who wants to verify it.
· How it works: Rollup security depends on data availability: once transaction data is public, anyone can independently calculate the state, submit fraud proofs, or withdraw their funds if the sequencer goes down.
· Note: When you come across a chain claiming to have “ultra-low costs,” first ask where its transaction data is stored and who guarantees that it can be downloaded.
$TIA 0.4802（+0.48%）
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· Key point: Data availability means that all transaction data for a block has actually been published and is accessible to anyone who wants to verify it.
· How it works: Rollup security depends on data availability: once transaction data is public, anyone can independently calculate the state, submit fraud proofs, or withdraw their funds if the sequencer goes down.
· Note: When you come across a chain claiming to have “ultra-low costs,” first ask where its transaction data is stored and who guarantees that it can be downloaded.
$TIA 0.4802（+0.48%）
#TIA
