🔐 A hash is like a digital fingerprint that uniquely identifies data.
🧱 Blocks in a blockchain consist of a hash, a random number, and additional data.
🔗 Each block is linked to the previous block through its hash.
🔒 A block in a blockchain contains a hash that is signed and starts with four zeros.
🔄 Changing any information in a block would result in a different hash.
⛏️ Mining involves finding a nonce that produces a hash starting with four zeros.
🔑 Blockchain consists of blocks linked together, with each block pointing to the previous one.
🔄 Changing information in a block alters its hash and makes it invalid, disrupting the entire chain.
💡 By modifying a block and re-mining it, the blockchain can be altered from that point onward.
🔗 Blockchain is a decentralized digital ledger that records transactions across multiple computers.
⛏️ Mining blocks requires solving complex mathematical problems and adding them to the blockchain.
🔄 Changing past blocks on the blockchain requires redoing the mining process for all subsequent blocks.
🔑 Blockchain is a distributed ledger where each block contains a unique hash.
🧱 Blockchains are made up of multiple blocks, each with a set of transactions.
💸 Transactions in a blockchain can be represented as tokens, such as dollars.
🔒 The importance of immutability and tracking changes in blockchain.
💰 Blockchain's significance in resisting changes and ensuring secure transactions.
🔗 The concept of tokens and the limitation of recording only money movement in blockchain.
💰 In this video, we learn about the concept of blockchain and its benefits.
🔗 A blockchain is a decentralized ledger that allows for secure and transparent transactions.
⏳ By tracking transactions in blocks and using hashes, blockchain technology ensures immutability and traceability.
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