$BTC $ETH

🪙 Bitcoin (BTC)

Overview

Launch Year: 2009

Creator: Satoshi Nakamoto (pseudonymous)

Purpose: Digital currency for peer-to-peer transactions without intermediaries

Supply Cap: 21 million BTC

Key Features

✅ Decentralized – No central authority controls it

✅ Store of Value – Often called "digital gold"

✅ Proof of Work (PoW) – Secure but energy-intensive consensus algorithm

✅ Fixed Supply – Helps protect against inflation

Use Cases

Store of value

Cross-border transactions

Hedge against inflation

Popular Wallets

Hardware: Ledger, Trezor

Software: Trust Wallet, Electrum

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💻 Ethereum (ETH)

Overview

Launch Year: 2015

Creator: Vitalik Buterin and others

Purpose: Programmable blockchain for smart contracts and decentralized apps (dApps)

Supply: No fixed cap, but issuance is now reduced after the Merge

Key Features

🧠 Smart Contracts – Enables DeFi, NFTs, DAOs, and more

🌍 Ethereum Virtual Machine (EVM) – Powers decentralized apps

♻️ Proof of Stake (PoS) – Since the Merge in 2022 (more energy-efficient)

🔁 Layer 2 Scaling – Solutions like Arbitrum, Optimism, zkSync reduce fees and increase speed

Use Cases

Decentralized Finance (DeFi)

NFTs and Gaming

Supply Chain, Identity, and Voting

Token launches (ERC-20 standard)

MetaMask, Trust Wallet, Ledger, Trezor

⚖️ BTC vs ETH – Key Differences

Consensus Proof of Work (PoW) Proof of Stake (PoS)

Supply Cap 21 million No fixed cap

Speed Slower (10 min block) Faster (~15 sec block)