An option means that the buyer has the right to choose to buy or sell the agreed asset at the strike price at the agreed time in the future, and the seller of the option must assume the obligation to perform when the buyer chooses to exercise.
A bond is a financial contract, a debt instrument issued to investors by governments, financial institutions, industrial and commercial enterprises, etc. to raise funds by borrowing directly from society, while promising to pay interest at a certain rate and repay the principal on agreed terms.
Dash (formerly known as Darkcoin, also known as Digital Cash) is a digital currency that has quietly crept its way into the top 10 largest cryptocurrencies.
Blockchain is infrastructure, not for the fastidious and highly predatory
Bitcoin is an application of the blockchain, while Gcoin is the underlying protocol of the blockchain.
Ether is the other mainstream currency alongside Bitcoin. Among the thousands of virtual currencies, Ethereum has the second largest market capitalization in the world, after bitcoin.
Bitcoin has the mathematical characteristics of money (durability, portability, interchangeability, scarcity, separability and identifiability), but it does not rely on physical characteristics (such as gold and silver) or the trust of the central authority (such as fiat currency).
