Proof of Work

Since its inception in 2009, Bitcoin has been the target of relentless attacks – from hackers, governments, and even well-meaning developers who wanted to change its rules. Yet Bitcoin has never been successfully attacked. No one has ever double-spent Bitcoin. No one has ever inflated the supply. No one has ever censored a transaction. Understanding […]

One of Bitcoin’s most powerful features is that anyone can run a full node – a computer that independently verifies all transactions and blocks according to Bitcoin’s consensus rules. Running a node is the ultimate expression of Bitcoin’s trustless philosophy: instead of trusting someone else to tell you what is happening on the network, you

When most people think of smart contracts, they think of Ethereum. But Bitcoin has had smart contract capabilities since its inception. Bitcoin’s scripting language, while deliberately limited compared to Ethereum’s Turing-complete language, is powerful enough to enable a wide range of financial applications – from multi-signature wallets to time-locked transactions to complex escrow arrangements. What

Bitcoin mining uses energy. This is a fact that is not in dispute. What is disputed is whether this energy use is justified, whether it is as harmful as critics claim, and whether it might actually be beneficial for the global energy system. The truth about Bitcoin’s energy use is far more nuanced than the

At its simplest, a Bitcoin transaction is just a transfer of value from one address to another. But under the hood, it is an elegant cryptographic process that ensures security, prevents fraud, and maintains the integrity of the entire network. Understanding how transactions work is key to understanding Bitcoin itself. The Anatomy of a Bitcoin

Bitcoin mining is one of the most misunderstood aspects of the Bitcoin network. Many people picture miners with pickaxes digging for gold, but the reality is both more technical and more fascinating. Mining is the process that secures the Bitcoin network, processes transactions, and introduces new Bitcoin into circulation – all at the same time.