How a fee is calculated

Mainnet fees are based on gas used and the effective gas price. The reviewed policy has a minimum effective gas price of 1 gwei, a zero base fee, and routes fees to the validator reward pool rather than burning them.

A basic native transfer using 21,000 gas at 1 gwei costs 0.000021 GRP. This is an example, not a flat price for every action. Contract deployment, NFT minting, and other complex calls can use more gas. The old private-test-chain 0.5-GRP flat fee is not current mainnet policy.

Limits are not capacity claims

The reviewed mainnet block gas limit is 120,000,000 and the per-transaction gas bound is 15,000,000. These are execution limits, not a promise of a particular TPS rate or confirmation time. A transaction must also satisfy balance, nonce, signature, chain, and contract requirements.

From submission to completion

Follow the receipt and its status. For a successful contract transaction, inspect the resulting events or ownership state as needed. For a bridge, a successful source transaction is only one stage; destination finalization must also complete.

Network progress and authorized validator participation determine when work can finalize. A UI animation or an elapsed timer is not finality evidence.