  Distributed Ledger Technology (DLT) is a shared, synchronized and replicated
data spread spatially and temporally with no centralized administration and/or
storage. Each node has a complete and identical set of records. All
participants contribute to building and maintaining the distributed ledger.
Current DLT technologies fall into two broad categories. Those that use
block-chains such as in Bitcoin or Ethereum, and newer approaches which reduce
computational loads for verification. All current approaches though difficult
to crack can be vulnerable to quantum algorithms using Quantum Information
Technologies (QIT). This effort joins the 2 technologies, constructing a
Quantum Distributed Ledger (QDL) which provides a higher level of security
using QIT and a decentralized data depository using DLT. This enhanced security
prevents middleman attacks with quantum computers yet retains the advantages of
a decentralized ledger of data.
