Network cost FAQ#
Centurion network costs pay validators for processing transactions. Computation is measured in Newtons, and the cost is paid in native CTN.
What determines the cost?#
The transaction uses a number of Newtons and pays an effective price per Newton. Centurion follows a CIP-1559-style model with a per-block base fee and a transaction priority fee.
Is the wallet estimate the final amount?#
It is an estimate based on simulated computation and current fee conditions. The Newton limit is a cap, not necessarily the quantity that will be consumed. Base fees and execution paths can change before inclusion.
Why do swaps cost more than simple transfers?#
A swap may read and update several contracts, transfer multiple tokens, cross v3 ticks, wrap or unwrap CTN, and emit events. More computation generally uses more Newtons.
Can WCTN pay the cost?#
No. WCTN is a CRC-20 token used inside pools. Keep native CTN in the account for network costs.
Why was I charged for a failed transaction?#
A transaction can execute and then revert because an output limit, token rule, or contract condition failed. Validators still performed computation, so the consumed Newtons are charged even though state changes were rolled back.
Why can the wallet not estimate the cost?#
The transaction may be expected to revert, the RPC connection may be stale, an earlier nonce may be pending, or the token may use behavior the simulator cannot handle. Do not force submission without understanding the cause.
What can I do about a pending transaction?#
Check whether an earlier transaction from the same account is blocking it. Use the wallet's supported replacement or cancellation function with the same nonce when appropriate. Do not submit repeated duplicates without reviewing nonce state.
Are testnet costs real?#
Fornax and Centaurus use tCTN for testnet computation. tCTN has no mainnet value and cannot pay mainnet costs.
How do I avoid fee scams?#
Use verified Centurion network configuration and official interfaces. Do not visit a “fee refill” link from a direct message, and never share a recovery phrase or private key to receive CTN.