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transaction validation

Bitcoin is a digital currency built on a blockchain network, but it also acts like a scarce digital asset. Here’s what that means in practice.

Bitcoin miners do validate transactions, but they are not the only check. Full nodes verify rules first, miners package valid transfers into blocks.

Bitcoin has two key launch dates: the white paper was published on October 31, 2008, and the network started on January 3, 2009.

What language is Bitcoin written in? The early core client was mainly built in C++, while Bitcoin Script handles spending rules on-chain.

Is Bitcoin a fintech? The short answer: BTC itself is not a typical fintech product, but the network and services around it sit inside fintech.

Bitcoin is a new type of electronic money because it enables direct value transfer on an open network with fixed supply rules.

Who developed Bitcoin? The public answer is Satoshi Nakamoto, the name tied to the white paper, early code, and the network’s launch.

Bitcoin is not DeFi by itself. It is a decentralized asset and network that can be used in DeFi through wrapped, bridged, or native setups.