This method checks if our chain handler has the tip of the blockchain as an external source If we do not have the same chain, we sync our chain handler until we are at the same best block hash
This method checks if our chain handler has the tip of the blockchain as an external source If we do not have the same chain, we sync our chain handler until we are at the same best block hash
our internal chain handler
a function that we can call to retrieve a block
a function that can call a third party source (bitcoind, block explorer etc) to retrieve what the best block is on the blockchain