Bitcoin Mining Enters New Era: 20 Million Coins Mined, Final Supply Nears Limit

The Bitcoin network recently achieved a landmark milestone: 20 million bitcoins have been mined, representing nearly 95% of the total supply of 21 million. This means that only about 1 million bitcoins remain to be mined, and these remaining coins will be gradually released over time, with full mining completion expected around 2140.

This slow release rate stems from Bitcoin's unique "halving" mechanism – every four years, the block reward is automatically halved, systematically compressing the rate of new coin production. This design gives Bitcoin extreme scarcity, making it one of the few digital assets globally with a fixed total supply.

Industry observers point out that Bitcoin's supply model contrasts sharply with fiat currencies. The latter can be issued infinitely by central banks, while Bitcoin's total supply cap is permanently written into the protocol, independent of any centralized institution's decisions. Against the backdrop of rising inflationary pressures, geopolitical instability, and declining public trust in traditional financial systems, this "decentralized, immutable, transparent, and verifiable" supply mechanism is increasingly being seen as a preferred store of value. While the 20 million milestone is symbolic, the market has not seen significant price fluctuations in the short term as a result. What is truly noteworthy is that in the future, when all bitcoins have been mined, miners will no longer receive block rewards and will rely solely on transaction fees to maintain network operation. This shift is seen by some as a potential challenge to network security, while others believe it is a necessary step for Bitcoin to mature and achieve long-term sustainable operation. The future network economic model may revolve around a new evolution of transaction fee incentive mechanisms.