Industry WIKI

Bitcoin City is a planned smart city project in La Unión, El Salvador. The planned city is intended to be a tax haven, and to use geothermal energy to power Bitcoin mining. The feasibility of its reliance on both geothermal energy and Bitcoin have been the subject of criticism, alongside concerns regarding delays in the project's financing and construction.

Bitnation, or crypto nation, was a cryptocurrency-based project self-described as a "voluntary nation", wherein all citizens chose to be citizens, founded in 2014 by Susanne Tarkowski Tempelhof. A part of the process for becoming a citizen involved recording vital records, identity, and other legal events through the use of a smart contract on the Ethereum blockchain.

The Cayman Islands dollar (currency code KYD; symbol: $ or CI$) is the currency of the Cayman Islands, a British Overseas Territory. It was introduced in 1972 to replace the Jamaican dollar. Its base unit is the dollar; each dollar is subdivided into 100 cents.

The Cook Islands dollar is the current currency of the Cook Islands, which is used alongside the New Zealand dollar. The dollar is subdivided into 100 cents, with some older 50-cent coins carrying the denomination as "50 tene".

The Eastern Caribbean dollar (symbol: $ or EC$; code: XCD) is the currency of all seven full members and one associate member of the Organisation of Eastern Caribbean States (OECS). The successor to the British West Indies dollar, it has been issued since 1965.

Multivía was a contactless card designed for paying the travel fares in the mass transport system Transantiago, in Santiago, the capital of Chile. It was replaced by Tarjeta bip! since 2007 and was completely phased-out in 2011. It was a plastic card equipped with a chip that automatically discounts the cost of a travel when passing the card near a contactless card reader.

Tarjeta bip! ("bip! card") is the contactless payment method used in the public transportation system of Red Metropolitana de Movilidad in the metropolitan region of Santiago, Chile.