Khám phá Blockchain

Blockchain Explorer là game interactive demystify blockchain technology - distributed ledger revolutionizing finance (Bitcoin, Ethereum), supply chains, voting systems, NFTs, và trust-requiring transactions. Game mô phỏng how blockchain actually works: bạn create blocks, add transactions (Alice sends Bob 5 BTC), hash data với SHA-256, link blocks với previous hash (creating "chain"), broadcast to network nodes, và achieve consensus qua mining (Proof of Work) hoặc staking (Proof of Stake). Visual step-by-step: see exactly how (1) Transactions gathered into mempool, (2) Miners/validators select transactions, (3) Nonce found satisfying difficulty target (hash starts with zeros), (4) Block added to chain, (5) Network validates và accepts.

Game dạy key concepts: (1) Decentralization (no central authority - nodes equal), (2) Immutability (once written, cannot change - chaining prevents tampering), (3) Transparency (all transactions public - pseudonymous but traceable), (4) Cryptographic security (public-key cryptography - digital signatures), (5) Smart contracts (self-executing code on blockchain - Ethereum). Hands-on activities: (1) Mine blocks (brute-force nonce - feel computational work!), (2) Attempt to hack blockchain (modify block → all subsequent hashes invalid!), (3) Create cryptocurrency tokens, (4) Write simple smart contract (if X then Y), (5) Trace transaction histories (forensics!). Game compare blockchain types: public (Bitcoin - anyone join), private (Hyperledger - permissioned), consortium (multiple organizations).

Real-world applications explored: DeFi (lending without banks), NFTs (digital ownership proof), supply chain tracking (Walmart food safety), medical records (patient-controlled), voting (tamper-proof elections). Phù hợp teens curious về crypto, college business/CS students, entrepreneurs exploring Web3, investors wanting understand beyond hype. Game cuts through jargon - learn technology fundamentals!