Transactions, networks and blockchain: Where is the data stored when you send a bitcoin?

In the previous article we explored the concept of Bitcoin wallets—the digital storage mechanism for this emerging asset class. At first glance, this may not seem particularly groundbreaking; after all, we are already familiar with digital wallets offered by banks, PayPal, or Paytm for managing traditional fiat currency. However, to truly appreciate the innovation behind Bitcoin—and to meaningfully compare it with conventional money and banking systems—we must delve deeper into how Bitcoin transactions function under the hood.