The decentralized currency has been adopted as a legal tender in El Salvador this week.
The president of the Riksbank (Sweden's central bank), Stefan Ingves, has questioned the future of bitcoin without government support, comparing its sale to trading on commercial stamps.
"Sooner or later private money collapses. Of course you can get rich trading in bitcoin, but it is comparable to trading in stamps," said the governor of the institution at a conference of the banking sector in Stockholm, reports Bloomberg.
Ingves commented earlier this year that bitcoin and other cryptocurrencies are unlikely to escape regulatory oversight as their spread grows.
This week bitcoin debuted as legal tender in El Salvador, a country that has been dollarized for two decades. The cryptocurrency plunged 17% on the same Tuesday, though it then experienced a slight recovery to currently trade at more than $ 47,000, according to CoinDesk data.
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