IOTA
IOTA is an open-source distributed ledger. It uses a directed acyclic graph (DAG) instead of a blockchain.
IOTA's DAG is referred to as the tangle, and is a generalization of the block chain protocol.
Highly Scalable > Increased network activity decreases transaction settlement times
Low resource requirements >Designed for tiny devices, such as sensors, to participate
Zero-fee transactions > Send 1 cent and receive 1 cent, send $1,000,000 and receive $1,000,000
Secure data transfer > All data is encoded, allowing secure data transfer, storage and reference
Offline transactions > Devices never need perfect connectivity
Quantum Immune > Using special signatures IOTA is resilient to the next generation of computing
More information about IOTA can be found at:
https://www.iota.org/get-started/what-is-iota or
https://www.mobilefish.com/developer/iota/iota_quickguide_tutorial.html