Bartering is a trading system where people directly exchange goods and services without using money as an intermediary. As one of the oldest forms of value exchange, it has found modern applications in the cryptocurrency space through peer-to-peer trading platforms, decentralized exchange protocols, and atomic swap technology, enabling direct exchanges of digital assets across different blockchains.
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Define Nonce
A nonce is an arbitrary value used only once in blockchain technology, primarily used in the Proof-of-Work (PoW) mining process. Miners verify block validity and receive mining rewards by continuously adjusting the nonce value and performing hash calculations until a hash value that meets the network's difficulty requirement is found. The nonce occupies 4 bytes in the block header, allowing for approximately 4.3 billion possible values to be tested.
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