siena01
Essential terms
| Term | Meaning |
|---|---|
| Allowance | Permission for a contract to spend a specified token amount from your wallet. |
| Gas | The network fee for processing a transaction, paid in ETH on Base and Arbitrum. |
| WETH | Wrapped ETH: the ERC-20 token used in the current Siena swap pair. |
| Native USDC | Circle-issued USDC on that chain, distinct from bridged versions such as USDC.e. |
| Slippage tolerance | The allowed reduction from quoted output used to set a transaction’s minimum output. |
| Price impact | How a trade’s size affects the price available in a liquidity pool. |
| Finality | The chain’s confirmation state used before Siena credits a canonical transaction. |
| Transaction hash | A public identifier used to locate and verify an on-chain transaction. |
| Basis point / bps | One hundredth of a percent. 19 bps equals 0.19%. |
| Indexer | The service that reads verified chain events into Siena’s trading ledger. |