💡 First: What is blockchain?
Imagine with me:
Every time someone makes a "transfer" or "transaction" online, it gets recorded in a giant digital ledger, but the unique thing about this ledger is that:
🔹 Not limited to a single entity – but distributed across thousands of devices around the world!
🔹 You cannot modify or delete anything in it – any information recorded remains there forever.
🔹 Transparent to everyone (but without mentioning names) – which means it's transparent and secure at the same time.
💥 This is blockchain! 🔗
"Blockchain" = a chain of blocks, each block contains a set of data, and is linked to the previous one like a chain.
🔐 Practical example: Shipping and delivery
Imagine a company like FedEx or Aramex using blockchain to track shipments:
📦 Where was the product shipped?
✈️ When did you enter the airport?
📬 Who received it?
⚠️ Where did the delay happen?
💥 And the result?
Complete transparency!
Everyone – the sender and the receiver – can see the details "live", and no one can tamper or hide anything.
⚙️ Why is blockchain important?
✅ Eliminates the intermediary – you don't need a bank or entity controlling the process.
✅ Establishes credibility – if the information is written on the blockchain, it doesn't change!
✅ Saves time and money – transactions become faster, cheaper, and more accurate.
💰 So... what are digital currencies?
Digital currencies are "digital money" based on blockchain, such as:
🟠 Bitcoin
⚙️ Ethereum
🌊 Solana
👈 You can use it in:
🛒 Purchase
📈 Trading
💰 Investment
🎮 Games (Play-to-Earn)
But... without blockchain? Digital currencies don't work at all!
🧠 Summary:
Blockchain is the smart infrastructure,
and digital currencies are the products that people use on this infrastructure.
📧 Like the internet and email:
The internet = the system
Email = one of the applications that work on it!
