Questions about Cryptocurrency

Short answers, pulled from the story.

Who created the first cryptocurrency and when was it released?

Satoshi Nakamoto released Bitcoin as open-source software in January 2009. This pseudonymous developer used SHA-256 cryptographic hash functions within its proof-of-work scheme.

What is the difference between proof of work and proof of stake in cryptocurrency networks?

Proof of work requires miners to use specialized hardware like FPGAs and ASICs to validate transactions through complex hashing algorithms. Proof of stake validates transactions by requesting users demonstrate ownership of currency amounts without requiring energy-intensive mining operations.

Which country adopted Bitcoin as legal tender on the 9th of June 2021?

El Salvador became the first nation to adopt Bitcoin as legal tender after its Legislative Assembly voted 62 to 22 in favor of President Nayib Bukele's bill. The vote officially classified the cryptocurrency for national use starting that month.

How much money did criminals launder using cryptocurrency in 2021 according to Chainalysis?

Chainalysis reported that criminals laundered $8.6 billion worth of cryptocurrency in 2021 which represented a 30% increase from the prior year. Darknet marketplace Hydra generated over $1 billion in sales during 2020 while almost 74% of ransomware revenue exceeded $400 million.

When did China declare all cryptocurrency transactions illegal and what was the impact on prices?

China declared all cryptocurrency transactions illegal in September 2021 completing its crackdown on intermediaries and miners within its borders. This ban caused sharp price falls with Bitcoin dropping 31% and Ethereum falling 44% immediately following the announcement.