When a bitcoin transaction is initiated, it goes through a series of complex steps to become part of the blockchain. Miners on the bitcoin network validate the transaction by solving a cryptographic puzzle, and once validated, the transaction is added to a block in the blockchain. The block is then linked or chained together with other blocks, creating a permanent record of the transaction.
It's important to note that bitcoins are not actually stored in wallets; instead, wallets hold bitcoin addresses, which are records of all transactions made. Bitcoin addresses are 34-character long strings of letters and numbers, also known as public keys. When funds are sent from one wallet to another, the transaction is broadcasted to the entire bitcoin network, and miners confirm its validity before adding it to the blockchain. This process ensures the security and integrity of the bitcoin network, as all transactions are publicly visible and cannot be altered once they have been added to the blockchain.