Bitcoin 101

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Bitcoin Network

Bitcoin mining is a process where powerful computers solve complex mathematical problems to validate transactions on the blockchain. The blockchain is a decentralized ledger that records all Bitcoin transactions, which ensures that transactions are secure and tamper-proof.

When a user initiates a transaction, it is broadcasted to the Bitcoin network, where it is picked up by miners. Miners then validate the transaction by solving a complex mathematical problem that requires significant computing power. The solution to the problem is then added to the blockchain, along with the transaction details.

The process of mining is not easy, and it requires significant computing power, electricity, and resources. However, the rewards for miners are substantial, as they receive newly minted Bitcoins as a reward for adding a block of transactions to the blockchain.

Miners compete with each other to solve the mathematical problem, and the first miner to solve the problem gets to add the next block of transactions to the blockchain and earn the reward. This process is known as proof-of-work (PoW), and it ensures that the blockchain is secure and decentralized.

The validation process by miners is crucial for the Bitcoin network, as it ensures that transactions are secure and tamper-proof. Once a transaction is added to the blockchain, it cannot be altered or reversed, which ensures that users have complete control over their funds.

In addition to validating transactions, miners also play a crucial role in maintaining the integrity of the blockchain. They verify the authenticity of new transactions and prevent double-spending, which is a crucial aspect of the Bitcoin network’s security.

Block Reward Halving


Bitcoin block reward halving is an event that occurs approximately every four years, where the amount of bitcoin rewarded to miners for successfully mining a block is cut in half. This event is a crucial aspect of the bitcoin protocol and has significant implications for the cryptocurrency’s overall supply and price.

The initial block reward was set at 50 BTC per block when the network was launched in 2009. However, the reward is cut in half every 210,000 blocks, which takes approximately four years to mine. The first bitcoin block reward halving occurred in 2012, reducing the block reward to 25 BTC. The second halving occurred in 2016, reducing the reward to 12.5 BTC. The most recent halving took place in May 2020, reducing the block reward to 6.25 BTC.

The block reward is currently 6.25 bitcoins, and the next halving event is expected to occur in 2024. The purpose of halving the block reward is to limit the total number of bitcoins in circulation to 21 million, which is expected to be reached around the year 2140.