How Bitcoin Works | GoAI Insights

The Blockchain: Bitcoin’s Foundation

Bitcoin transactions are recorded on a blockchain, which is a public, tamper-proof ledger. Each transaction is grouped into blocks, and new blocks are added sequentially, forming a chain. This structure prevents unauthorized modifications and ensures transparency.

Mining and Proof of Work

New Bitcoin transactions are confirmed through a process called mining. Miners use specialized computers to solve complex mathematical problems that validate transactions. The first miner to solve the problem adds a new block to the blockchain and receives a reward in Bitcoin.

Why Mining Matters

Mining serves two essential functions:

Securing the Network: It ensures that transactions are legitimate and prevents double-spending (spending the same Bitcoin twice).
Issuing New Bitcoin: Mining is the only way new Bitcoins enter circulation, following a controlled and predictable supply schedule.

Public and Private Keys

Bitcoin transactions rely on cryptographic keys:

Public Key: Functions as a Bitcoin address where others can send funds.
Private Key: A confidential code that allows the owner to access and spend their Bitcoin.

Losing the private key results in losing access to Bitcoin permanently, emphasizing the need for secure storage.