Atomic swaps can be implemented both on-chain - between two blockchains, and off-chain - outside the blockchain. The concept of cross-chain trading is innovative. Daniel Larimer introduced the P2PTradeX protocol considered to be the first prototype of the atomic swap in 2012. The communities of Bitcoin, Litecoin, Komodo, and Decred have played a significant role in the development and growth of this technology.
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The main goal of Decentralized Finance is to create an open, free, and transparent ecosystem of financial services that is available to everyone and not controlled by a centralized government. Throughout Defi projects, users take full control of their assets and interact with the ecosystem through peer-to-peer (P2P) decentralized applications (dApps).
The primary goal of blockchain technology is to create a reliable and secure digital money system. Before Bitcoin was invented, attempts to design a similar system had already been made, but they were all faced with the problem that transactions could be copied.
51% attack is a hackers' assault on the blockchain network, where one person or a group of miners, for example, one mining pool can control much of the hashing speed. It can lead to disruption of the network processes as the attacker will have enough hashing power to exclude or change a specific transaction or the order of transactions.
The Ethereum network has become very popular in the world of cryptocurrencies and is currently processing large volumes of transactions. In order to continue the growth of the network, node operators are forced to increase their computing power, which can lead to centralized control.
TRON, while similar to the Ethereum network, offers some new features. To ensure sleek network operation, and no delays on transaction confirmation, the TRON network gives everyone a free pool of Bandwidth points for free transactions every 24 hours.