In the last few years digital currencies have successfully demonstrated
their ability to become an alternative financial instrument in many
different markets. Most of the technologies available at the moment are
based on the principles of Blockchain architecture, including
dominating currencies like Bitcoin and Ethereum. Despite its
popularity, Blockchain is not the best possible solution for all scenarios.
One such example is for fast micro-payments.
Zold is an experimental alternative that enables distributed transactions between
anonymous users, making micro-payments financially feasible.
It borrows the proof-of-work principle from Bitcoin,
and suggests a different architecture for digital wallet maintenance.