Bitcoin (BTC) verð, markaðsverð í rauntíma og fréttir

Bitcoin is the first decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown person published a white paper under the pseudonym of Satoshi Nakamoto. Use of bitcoin as a currency began in 2009, with the release of its open-source implementation. From 2021 to 2025, El Salvador adopted it as legal tender currency before revoking it. As bitcoin is pseudonymous, its use by criminals has attracted the attention of regulators, leading to its ban by several countries. Bitcoin works through the collaboration of computers, each of which acts as a node in the peer-to-peer bitcoin network. Each node maintains an independent copy of a public distributed ledger of transactions, called a blockchain, without central oversight. Transactions are validated through the use of cryptography, preventing one person from spending another person's bitcoin, as long as the owner of the bitcoin keeps certain sensitive data secret. Consensus between nodes about the content of the blockchain is achieved using a computationally intensive process based on proof of work, called mining, which is performed by purpose-built computers. Wikipedia

Um Argentínskur pesi

The peso is the currency of Argentina since 1992, identified within Argentina by the symbol $ preceding the amount in the same way as many countries using peso or dollar currencies. It is subdivided into 100 centavos, but with 10 pesos being worth about 1 US cent in early 2025, smaller denominations are not issued or in normal use. Its ISO 4217 code is ARS. It replaced the austral at a rate of 10,000 australes to one peso. Argentine currency has experienced severe inflation, with periods of hyperinflation, since the mid-20th century, with periodic change of the currency valuation to a new version at a rate ranging from 100:1 to 10,000:1. A new peso introduced in 1992, officially the peso convertible de curso legal, was worth 10,000,000,000,000 pesos moneda nacional, the currency in use until 1970. Since the early 21st century, the peso has experienced further substantial inflation, reaching 289.4% year-on-year in April 2024, the highest since the current peso was introduced in the Convertibility plan of 1991. Wikipedia