Almost all of cryptocurrencies have a limited quantity, rendering them an extremely scarce digital asset. As an instance, the maximum quantity of bitcoin that will ever be created is 21 million. The quantity of bitcoins generated per block is reduced by 50% every four years. This process is referred to as "halving." The final halving event will take place in the year 2140.

Ethereum (ETH) is commonly divided into small units, with the smallest and most frequently used denomination being referred to as a tiny. Gas costs, which determine the cost of transactions on the Ethereum network, are often expressed in this unit. Refer to the entry on 'ether (denominations)' for additional details.

Officially authorized currency issued by the government. Some examples of currencies include US Dollars (USD), Euros (EUR), Yuan (CNY), and Yen (JPY).

With the increasing interest in utilizing public blockchains for various purposes, developers have started developing application-specific chains that are tailor-made and tailored to meet the specific requirements of their apps. These specialized chains are commonly referred to as appchains. An appchain is typically not a complete blockchain, but rather provides an optimal execution environment for an application, while depending on a foundational "Layer 1" blockchain for consensus. Occasionally known as "Layer 3" or "L3". Additionally, please refer to the concepts of "blockchain trilemma", "modular blockchain", and "Layer 2".