Mar, 4; Delphi Media x John Adler: The world’s first modular blockchain network:
Data availability problem by John Adler:
You need all the transaction data to be published, and everyone must know and agree that this data has been published in order to have a secure blockchain.
Let’s say we have full node, which is really expensive, and light node. If block producer only generates the header of the block, and the light node receive message from the full node, “the block producer don’t have the data!”. But the light node could not verify for itself. In this case the light node could not tell if the block producer or the full node lied.
How to solve:
Double the size of the block, the complexity is O(sqrt(n))
The FIRST innovation solving a problem is worth investing.
According to John Adler, the only disadvantage for Celestia Network is it will need time for engineering. Every other things would be at least as good as before.
Could help the blockchain infrastructure grows since it enables people to deploy blockchain as conveniently as a smart contract, and applications could be updated without main chain hard forks.