Sealed-Bid Auction Reveal Tool

WHAT IT DOES

Sealed-Bid Auction Reveal Tool is a non-custodial tool that reveals actual bid amounts after the commitment phase, enabling sealed-bid auctions to proceed with transparent bid amounts. It reads sealed-bid auction contract state, user address, token balances, auction parameters, auction ID, bid commitment, bid salt/reveal value, bid amount, reveal window, reveal deadline, auction status, user's bid history, commitment status, reveal eligibility, and auction settlement state to structure the optimal reveal operation. With a single transaction, it calls revealBid(), executeBidReveal(), or submitBidReveal() on the target contract, revealing the actual bid amount with the matching salt value. The tool is essential for the second phase of sealed-bid auctions, where commitments are opened to determine the winning bid.

HOW TO USE

1. Connect your wallet (EVM-compatible).

2. Paste the sealed-bid auction contract address.

3. Enter the auction ID, actual bid amount, and the salt/reveal value used during commitment.

4. Optionally specify a collateral token address (leave empty for native currency).

5. Review the reveal window, reveal deadline, commitment status, and reveal eligibility.

6. Click "reveal bid" and confirm the transaction in your wallet.

The tool checks reveal window, commitment status, and reveal eligibility before execution to prevent failed transactions. After the transaction confirms, your bid is revealed on-chain—no centralized custody, no intermediaries. The auction can now proceed to determine the winning bid based on all revealed amounts.

TECHNICAL MECHANISM: MULTI-FUNCTION FALLBACK WITH SALT VERIFICATION

Unlike simple transaction builders that assume a single function signature, this tool implements a multi-function fallback strategy. It first attempts revealBid(), then falls back to executeBidReveal() or submitBidReveal() if the primary method fails—automatically adapting to different contract implementations without requiring the user to know the exact function name. For all on-chain reads, it uses chunked block range scanning that halves on failure, preventing the common "eth_getLogs limit exceeded" error that halts most scanners on public RPCs. It double-verifies reveal eligibility by checking both the current reveal window and commitment status from storage, rather than relying on historical events—because an event log proves a commitment was made, not that the reveal can currently be executed. Gas estimation uses receipt.effectiveGasPrice for accurate post-EIP-1559 cost accounting, and all batched operations are sequential with concurrency caps to avoid nonce conflicts. The tool also validates that the salt value matches the commitment and that the reveal window is open before execution.

WHAT IT CANNOT SEE

This tool cannot verify that the sealed-bid auction contract is legitimate or has not been compromised. It cannot detect if the auction has been manipulated. It cannot ensure that reveal will execute at the optimal gas price due to network conditions. It cannot guarantee that reveal will succeed if the auction contract is paused or frozen. It cannot verify that the contract has not been upgraded or modified. It cannot detect if the trade path is optimal or not front-run. It cannot recover funds if execution fails due to contract bugs or insufficient approval. It cannot verify that the reveal value is valid or not. It cannot predict market movements, price gaps, or flash crashes. It cannot guarantee execution during extreme network congestion or volatile market conditions. It cannot detect if the underlying asset has been compromised. It cannot prevent the user from canceling or modifying reveal parameters. It cannot ensure that the reveal window is still open. It cannot protect against loss if reveal is rejected. It cannot verify that the commitment matches the reveal. It cannot guarantee that the bid will be considered. It cannot ensure that the auction will proceed correctly.

PLEASE NOTE

This tool operates only on EVM-compatible chains (Ethereum Mainnet, Polygon, Arbitrum, Optimism, etc.). It is non-custodial—you retain full control of your funds at all times. Always verify contract addresses, auction IDs, and reveal parameters before executing. Reveals must be submitted within the reveal window—if you miss it, your bid will not be considered. The salt value must exactly match the one used during commitment. The tool is provided as-is; use at your own risk.