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Transaction fees are the amounts paid by users to facilitate and prioritize their transactions on a blockchain network. These fees are typically paid to network validators (miners in proof-of-work systems or validators in proof-of-stake systems) as a reward for verifying and adding transactions to a new block. Key points: • Transaction fees vary based on the specific cryptocurrency, network congestion, and the size and priority of the transaction. • On some blockchains, like Bitcoin and Ethereum, fees follow an auction-style model where higher bids secure faster transaction processing. • For smart contract blockchains like Ethereum, these fees are often referred to as "gas" and are paid in the network's native cryptocurrency, such as Ether (ETH). • Gas fees are calculated based on the gas limit, base fee, and an optional tip, and can fluctuate with network demand. Sources • ADK-TS Hackathon 2025 Winners • ADK-TS Hackathon 2025 wiki • Transaction Fee • Gas • Blockchain 🧠 Powered by AIDEN