  Different versions of peer-to-peer electronic cash exist as data represented
by separate blockchains. Payments between such systems cannot be sent directly
from one party to another without going through a financial institution.
Bitcoin provided part of the solution but its utility is limited to
intra-blockchain transactions. The benefits are lost if a trusted third party
is required to execute inter-blockchain transactions. We propose a solution to
the inter-blockchain transaction problem using the same fundamental principles
of Bitcoin. The protocol is described by the Uberledger framework, a
hierarchical meta-blockchain layer that encapsulates information regarding the
fidelity of peer-to-peer transaction facilitators.
