This is IOTA:
# No Transaction Fees.
# No Miners.
# Fixed Supply.
# Offline transactions.
# Backbone for the Internet of things.
IOTA is the next generation and revolutionary new public distributed ledger that utilizes a novel invention, called “Tangle”, at its core. The Tangle is a new data structure based on a Directed Acyclic Graph.
As such it has no Blocks, no Chain and also no Miners. Because of this radical new architecture, things in IOTA work quite differently compared to other Blockchains.