Some cryptocurrency events of the year:

1. SEC approves spot BTC ETF: ETF funds have attracted over $36 billion in inflow, with AUM approximately $110 billion. Among them, BlackRock accounts for about $54 billion in AUM and dominates over 70% of the market share based on trading volume.

2. A $1.2 million mistake: a user purchased 26.9 BTC (worth $1.2 million at that time) from the Binance exchange and mistakenly sent it to a Bitcoin Genesis wallet and could not retrieve it.

3. Sam Bankman-Fried sentenced to 25 years in prison: in March, the former CEO of FTX was sentenced to 25 years in prison and ordered to pay $11 billion in restitution for orchestrating one of the largest financial frauds in U.S. history.

4. Iconic Dogwifhat photo sold as NFT for $4.3 million.

5. Bitcoin halving for the fourth time: in April, the fourth halving event of Bitcoin reduced the block reward for miners from 6.25 BTC to 3.125 BTC, with miners producing 450 BTC per day instead of 900 BTC previously.

6. Residents in a Norwegian town complain about the noise from a Bitcoin mining facility, which costs them: Residents of Stokmarknes, a town in northern Norway, attempted to shut down a local Bitcoin mining facility due to noise from the cooling fans. Perhaps they also did not anticipate that their electricity bills would rise by over 20%, as the power company Noranett is now seeking to recover lost revenue due to these mining sites closing.

7. MicroStrategy - the big winner this year: currently holding 444,262 BTC, worth over $42 billion, averaging $62,257/BTC.