My photography portfolio, free tutorials and travel photo journal are on my website.
…hain networks have one or more functionalities. Bitcoin is a digital currency and a payment system. Its tamper-proof blocks hold ledger of all transactions. The people who sacrifice their computers are called miners. They get rewarded in bitcoins .
Does this mean Blockchain is formed by a group of people who keeps their computers running for goodwill? What is the use of these tamper-proof blocks?
One more thing, in a Blockchain network, not only data but the program is also replicated. Computers collectively execute the program. Most internet apps are centralised. Consider Facebook, …