Bridge Fraud Proof Challenge Tool

WHAT IT DOES

This tool provides on-chain submission and resolution of bridge fraud proof challenges, enabling you to challenge potentially fraudulent bridge transactions and protect cross-chain assets. It reads your connected wallet address, bridge contract address, fraud proof contract address, challenged transaction hash, challenge period, current block timestamp, challenger status, proof data, and resolution status. You can then sign and send transactions to submit fraud proofs with supporting data, challenge specific bridge transactions, resolve pending challenges, and record challenge metadata on-chain. All challenge parameters are displayed in a clear review panel before you sign, so you know exactly what you are challenging. The tool also logs transaction hashes, confirmation status, and gas costs, providing a complete audit trail of all challenge activities.

HOW TO USE

Connect your wallet using the built-in wallet bridge, choose the network that matches your bridge and fraud proof contracts, and paste the bridge contract address, fraud proof contract address, and the challenged transaction hash. Enter the challenge ID (if known) and the proof data as a hex string. The review panel shows all inputs and the current block timestamp before you sign. Use the numbered action buttons: submit fraud proof to submit a new fraud proof for a transaction, challenge transaction to formally challenge a bridge transaction with proof data, or resolve challenge to resolve a pending challenge (if you are the authorized resolver). You can also check status to view current challenge state, challenger, submission timestamp, and resolution outcome. Each transaction is signed sequentially, and the tool displays transaction details and confirmation status.

THE REAL MECHANISM

This tool uses ethers.js v5.7.2 to build and send transactions through the wallet's signer. It does not rely on any hardcoded contract addresses – you paste the contracts you are using, so you are in full control. When you submit a fraud proof, the tool constructs a contract call to the submitFraudProof function, which stores the proof data and associates it with the challenged transaction hash. When you challenge a transaction, the tool calls challengeTransaction, which initiates a formal challenge period during which the proof can be verified. When you resolve a challenge, the tool calls resolveChallenge, which evaluates the proof and determines whether fraud was confirmed. The tool reads challenge state via getChallenge, which returns the challenger address, transaction hash, submission timestamp, and resolution status. All transactions are sequential to prevent nonce conflicts, and gas costs are calculated using effectiveGasPrice for accurate post-EIP-1559 reporting.

WHAT IT CANNOT SEE

This tool cannot verify off-chain transaction validity, detect all bridge fraud, ensure proof correctness, or verify that the bridge contract handles challenges correctly. It cannot detect if the proof data is accurate or if the challenged transaction was actually fraudulent. The tool also cannot verify that the bridge contract correctly handles edge cases like invalid proofs, expired challenge periods, or resolution logic. It cannot simulate the outcome of a transaction before you sign it, nor can it guarantee that the challenge will be processed correctly if the contract is not properly implemented.

PLEASE NOTE

This tool works only on EVM-compatible chains supported by your wallet and provider. Always double-check the contract addresses and transaction hashes before signing. Use testnet first. The tool is a transaction-signing interface and challenge management tool, not a fraud detection or proof verification system.