ビットコイン

Bitcoin is the original decentralized digital currency and payment network that operates without a central authority or intermediaries. It uses peer-to-peer technology to enable direct transactions between users worldwide, secured by a public blockchain and a consensus mechanism called Proof of Work. Bitcoin’s open-source design allows anyone to participate in the network by running nodes, mining, or developing applications on top of it. It is primarily intended for developers, businesses, and individuals seeking a censorship-resistant, borderless, and low-fee payment system.

The Bitcoin protocol solves fundamental problems of trust and double-spending by distributing transaction validation across a global network of nodes. Its blockchain records all transactions transparently and immutably, enabling new use cases such as programmable money, decentralized finance (DeFi), and secure value transfer. Developers can access extensive documentation and developer guides covering blockchain structure, transactions, wallets, payment processing, and network protocols to build wallets, payment processors, or integrate Bitcoin payments into applications.

Bitcoin stands apart from other cryptocurrencies due to its pioneering status, robust security, and widespread adoption as a store of value and medium of exchange. It has the largest and most decentralized network, with a mature ecosystem of wallets, exchanges, and infrastructure providers. Real-world use cases include remittances, merchant payments, and decentralized finance primitives. Developers can get started by choosing a wallet, running a full node, or exploring the Bitcoin Core software and RPC APIs documented on the official developer site.