Arsalan Shafi
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Cryptocurrency is a decentralized digital asset built on blockchain technology, enabling secure, transparent transactions without intermediaries like banks.
Bitcoin, launched in 2009 by Satoshi Nakamoto, pioneered the space, valued for its scarcity (21 million cap) and proof-of-work consensus.
Ethereum expanded functionality with smart contracts, powering decentralized apps (dApps) and DeFi ecosystems.
Over 20,000 cryptocurrencies exist, with market cap exceeding $2 trillion in 2025, though volatility persists (Bitcoin’s 2021 peak: $69,000; 2022 low: $16,000).
Key mechanisms include private-public key cryptography for security, mining/staking for network validation, and wallets for storage.
Adoption grows El Salvador legalized Bitcoin in 2021 but regulatory uncertainty looms (e.g., SEC’s Ripple case).
Scalability (Ethereum’s high gas fees) and energy use (Bitcoin’s 150 TWh annually) are challenges.
Trends like layer-2 solutions (Lightning Network) and stablecoins (USDT) aim to address these.
Risks include scams, market manipulation, and quantum computing threats to encryption.
Blockchain’s potential extends beyond finance to supply chains and governance.
Cryptocurrency is a decentralized digital asset built on blockchain technology, enabling secure, transparent transactions without intermediaries like banks.
Bitcoin, launched in 2009 by Satoshi Nakamoto, pioneered the space, valued for its scarcity (21 million cap) and proof-of-work consensus.
Ethereum expanded functionality with smart contracts, powering decentralized apps (dApps) and DeFi ecosystems.
Over 20,000 cryptocurrencies exist, with market cap exceeding $2 trillion in 2025, though volatility persists (Bitcoin’s 2021 peak: $69,000; 2022 low: $16,000).
Key mechanisms include private-public key cryptography for security, mining/staking for network validation, and wallets for storage.
Adoption grows El Salvador legalized Bitcoin in 2021 but regulatory uncertainty looms (e.g., SEC’s Ripple case).
Scalability (Ethereum’s high gas fees) and energy use (Bitcoin’s 150 TWh annually) are challenges.
Trends like layer-2 solutions (Lightning Network) and stablecoins (USDT) aim to address these.
Risks include scams, market manipulation, and quantum computing threats to encryption.
Blockchain’s potential extends beyond finance to supply chains and governance.
Disclaimer: Includes third-party opinions. No financial advice. May include sponsored content. See T&Cs.
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