Bitcoin (BTC)

What is Bitcoin?

Bitcoin is a decentralized digital currency that operates on a distributed ledger known as a blockchain. The cryptocurrency was officially launched in the year 2009 by a pseudonymous creator known as Satoshi Nakamoto. It utilizes a proof-of-work consensus mechanism to secure the network and validate transactions without relying on a central authority. The primary use case for this digital asset involves facilitating peer-to-peer value transfers across the globe. Today, Bitcoin functions as a prominent layer-1 network and is widely recognized as a store of value within the broader cryptocurrency ecosystem alongside related tokens such as ETH, LTC, and BCH.

How does Bitcoin work?

Bitcoin operates on a decentralized network that relies on a proof-of-work consensus mechanism to maintain its integrity. This system requires participants to solve complex mathematical puzzles in order to propose new blocks to the chain. The process ensures that all network participants agree on the current state of the ledger without needing a central coordinator.

The network is maintained by specialized participants known as miners who dedicate computational resources to the system. These miners compete against one another to validate pending transactions and secure the underlying layer-1 blockchain infrastructure. In return for their computational efforts, successful miners receive newly minted tokens and transaction fees as a block reward.

When a user initiates a transfer, the transaction is broadcast to the entire network for verification by active nodes. Miners group these verified transactions into a block and append it to the existing blockchain ledger. Once the block is confirmed, the peer-to-peer payment reaches final settlement and the transferred value becomes available to the recipient.

Bitcoin use cases

Bitcoin tokenomics

The tokenomics of Bitcoin are defined by a strictly limited supply schedule programmed directly into the protocol. The network features a maximum supply cap of exactly 21000000 BTC, meaning no additional tokens can ever be created beyond this hard limit. Currently, the circulating supply stands at 20084696 tokens, which represents the vast majority of the total eventual supply. New tokens enter circulation through the proof-of-work consensus mechanism, where miners receive block rewards for securing the network. This issuance rate decreases over time through programmed halving events, gradually reducing the rate at which new supply is introduced. The combination of a fixed maximum supply and a decreasing issuance schedule establishes a predictable economic model for the cryptocurrency.

Bitcoin price history & milestones

Bitcoin launched in the year 2009 as a novel digital currency with an initially small network of early adopters and minimal trading activity. During its earliest recorded trading period, the cryptocurrency established an all-time low price of $0.04865 on 2010-07-14. As the network expanded and adoption increased over the subsequent years, the asset experienced significant market cycles. The cryptocurrency eventually reached an all-time high price of $126198.07 on 2025-10-06. The historical price trajectory reflects its transition from an experimental peer-to-peer payment system to a globally recognized digital asset. Today, Bitcoin holds the position of rank 1 in the broader cryptocurrency market, maintaining its status as the largest digital asset by market capitalization.