Bitcoin (BTC)

What is Bitcoin?

Bitcoin is the first decentralized cryptocurrency designed to operate without a central authority or administrator. The digital asset was officially launched in the year 2009 by a pseudonymous founder known as Satoshi Nakamoto. The network utilizes a proof-of-work consensus mechanism to secure transactions and maintain the integrity of the distributed ledger. Its primary use cases include functioning as a digital store of value and facilitating peer-to-peer payments across the globe. Today, Bitcoin operates as a prominent layer-1 blockchain network and maintains its position as the top-ranked digital asset by market capitalization, often serving as a foundational settlement layer for various financial applications within the broader cryptocurrency ecosystem.

How does Bitcoin work?

Bitcoin operates on a decentralized network utilizing a proof-of-work consensus mechanism to validate and record transactions. This system requires network participants to solve complex mathematical puzzles to propose new blocks. The proof-of-work model ensures that the distributed ledger remains secure against unauthorized alterations or malicious attacks.

The network relies on specialized participants known as miners who dedicate computational resources to the blockchain. These miners compete to verify transaction data and are rewarded with newly created digital assets. Additionally, independent nodes maintain copies of the entire blockchain to independently verify the accuracy of the network.

When a user initiates a transfer, the transaction is broadcast to the network for verification by available nodes. Miners then group these verified transactions into a new block to be permanently added to the chain. Once the block is confirmed, the peer-to-peer payment achieves final settlement on the distributed ledger.

Bitcoin use cases

Bitcoin tokenomics

The tokenomics of Bitcoin are defined by a strictly capped supply model that limits the total number of coins that can ever exist. The protocol enforces a maximum supply of exactly 21000000 BTC, creating a mathematically verifiable scarcity for the digital asset. Currently, the network has a circulating supply of 20055675 BTC available within the market. New coins are introduced into circulation through the proof-of-work consensus mechanism, where miners receive block rewards for securing the network and validating transactions. This issuance rate is programmed to decrease over time through periodic halving events, gradually slowing the introduction of new assets until the maximum supply limit is ultimately reached. This predictable economic structure distinguishes the asset from traditional inflationary fiat currencies.

Bitcoin price history & milestones

Bitcoin launched in the year 2009, initially trading at fractions of a cent before gaining broader recognition and adoption across the global digital economy. During its earliest recorded trading period, the digital asset established an all-time low price of $0.04865 on July 14, 2010. Over the subsequent years, the network experienced significant expansion in both participation and market valuation. This long-term trajectory eventually led the cryptocurrency to achieve an all-time high price of $126198.07 on October 6, 2025. Today, the asset maintains a dominant position within the broader financial landscape. According to current market capitalization metrics, Bitcoin holds the rank of 1 among all tracked cryptocurrencies, reflecting its established status as the primary layer-1 blockchain network.