Instead of having a copy of individual blockchains on each node (as is common in bitcoin), Cardano's blockchain streamlines the number
of nodes in a network by appointing a leaders responsible for verifying and validating transactions from a collection of nodes.
«An honest - to - goodness explanation would trace every single
firing of every node in the network,» creating a long, convoluted audit trail that is «completely uninterpretable to a human,» Fern says.
«Simulations show it is enough to store paths to about the square root of the
number of nodes in the network (provided nodes are reasonably well connected).
It was also a permissioned distributed system in which
all of the nodes in the network were known.
Juno allowed for the adding and removing of nodes, and was a permissioned distributed system in which
all of the nodes in the network were known.
Due to the inability to make sure
all of the nodes in the network have upgraded, and the damage done to a user that did not upgrade in a hard fork, hard forks are considered by many to be a riskier solution.