| Time | Change | High | Low |
|---|---|---|---|
| 24H | 0.00% | -- | -- |
| 7D | 0.00% | -- | -- |
| 30D | 0.00% | -- | -- |
| All | 0.00% | -- | -- |
MegaCoin, the Chinese name is US Card Coin, abbreviated as MEC, is an electronic currency developed on the basis of Bitcoin. Published in May 2013. Although MEC is developed on the basis of the Bitcoin client, the algorithm uses scrypt to eliminate ASIC mining. The total currency limit of USDC is 42 million, and a block is generated every 2.5 minutes. In the first 21,000 blocks (about 36 days), the reward for each block is 500 MEC, and in the next 21,000 blocks, the output will drop to 250 MEC, and so on. 21000 blocks, the block reward will drop to 125, 75, 50 (the decline will gradually slow down). And when the block reward drops below 25, the output is halved every 420,000 blocks, and it lasts forever. Currently, on the cryptsy trading platform, the trading price of each coin is about 0.00007 coins. The output formula of USCcoin is different from that of most coins. Since the output of USCcoin has dropped by half every 36 days in the first half year, with the rapid decline of mining output, the output of USDC has dropped by half every 36 days. The price of BTC will also increase to some extent (because miners will be more reluctant to sell).

Binance, the world's largest cryptocurrency exchange, halted withdrawals on October 29, 2026 after unauthorized transfers drained one of its wallets.

Coinbase, Bithumb, Daishin Securities and Mirae Asset Global Investments each confirmed unrelated breaches within the same day, with three of the four incidents reported in South Korea.

Solana switched on its Alpenglow upgrade on October 21, 2026, replacing the way its validators agree that a transaction is final. Validators are the computers that run the network, and finality is the point where a transaction can no longer be reversed.
Ascending and descending triangles are the two most common right-angle chart patterns. Learn how to draw them correctly, confirm breakouts instead of guessing, project targets with the measured move, and control risk when the pattern fails.
Bitcoin Pizza Day marks the first documented purchase of a physical item with bitcoin. Learn what happened on May 22, 2010, how much 10,000 BTC was worth then and later, and who the Bitcoin Pizza Guy really is.

Polymarket is a decentralized prediction market on Polygon where users trade Yes/No shares on real-world events. Here is how it works, how accurate its prices are, its crypto limits, and its legal status.