Transaction
Record of an asset exchange validated and secured on a blockchain.
Beginner-friendly explanation
A transaction is sending or receiving cryptos. Each transaction is recorded on the blockchain and cannot be changed.
📌 Example: When you send 0.5 BTC to a friend, it’s a transaction validated and recorded on the Bitcoin blockchain.
Intermediate-level insight
A transaction includes the sender's and recipient’s addresses, the amount, fees (gas), and a cryptographic signature. Validation depends on the network’s consensus (miners, validators).
📌 Example: Each Ethereum transaction requires paying gas fees to be validated and recorded on the chain.
Advanced perspective
A transaction’s characteristics determine its efficiency: nonce to prevent duplicates, gas fee prioritization, potential smart contract interaction. Vulnerabilities like replays or front-running must be anticipated.
📌 Example: A developer adjusts the gas fee to prioritize a sensitive DeFi transaction exposed to price volatility.
Security
transaction, blockchain, crypto sending, crypto receiving, gas fees, network validation, cryptographic signature, nonce, front-running