Some Facts: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...