The unit of computational work on Ethereum-style chains. Every opcode costs gas, paid in the network fee token.

The maximum gas a transaction or block may consume. A low limit can cause a transaction to fail mid-execution.

The amount paid per unit of gas, usually quoted in gwei; effective fees and inclusion depend on the network's fee rules and transaction conditions.

The launch parameters and first block of a chain or a token distribution.

The first block or agreed starting record of a blockchain, anchoring its initial history and state under that network's rules.