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Bitcoin (BTC / CAD)
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Teave: Bitcoin
Bitcoin is the first decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity 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. In 2021, El Salvador adopted it as legal tender. As bitcoin is pseudonymous, its use by criminals has attracted the attention of regulators, leading to its ban by several countries as of 2021.
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. WikipediaTeave: Kanada dollar
Kanada dollar on Kanada rahaühik, mis võeti kasutusele 1858. aastal. Seda märgitakse tavaliselt dollari sümboliga $ või teistest valuutadest eristamiseks sümboliga C$. Üks Kanada dollar jaguneb 100 sendiks.
Kanada rahatähed on väärtusega 5, 10, 20, 50 ja 100 dollarit. Kupüürid on samade mõõtmetega, kuid igaühel on erinev värvitoon: 5-dollarine on sinine; 10-dollarine lilla; 20-dollarine roheline; 50-dollarine punane ja 100-dollarine pruun. Mündid on väärtusega 1, 5, 10, 25 ja 50 senti, 1 dollar ja 2 dollarit, kusjuures 5-, 10- ja 25-sendised on sama suurusega kui USA sama nimiväärtusega mündid.
1-sendiste müntide verminine lõpetati 2012. aastal ja nende ringlusse andmine lõppes 2013. aastal. 50-sendise mündi verminine ja levitamine on lõpetatud, kuid seda on võimalik saada otse vermijalt.
Enne dollari kasutuselevõttu 1858. aastal oli Kanada rahaühikuks nael, mis jagunes 20 šillingiks; šilling aga võrdus 12 penniga. Wikipedia