Warning

Always start with a small test transaction. Bridge transfers are irreversible, so before moving large amounts, send a small amount first and confirm it arrives as expected.

The dedicated Bridge smart contract, controlled by the Gonka consensus, is active on Ethereum at the address:

0x972a7a92d92796a98801a8818bcf91f1648f2f68

Withdraw GNK (Ethereum → Gonka)

This is the reverse of Deposit GNK (Gonka → Ethereum). It burns wrapped GNK (WGNK) on Ethereum and releases the equivalent native GNK from escrow on Gonka.

Native GNK is released to the Gonka address derived from the same key that burns the WGNK on Ethereum. Make sure you control that key on Gonka — see Addresses and keys.

A) Burn WGNK on Ethereum

Burning is done by simply transferring WGNK to the bridge contract address. The bridge contract recognizes a transfer to itself as a burn and emits a WGNKBurned event.

// WGNK is the bridge contract itself (it is both the bridge and the WGNK ERC-20)
const tx = await wgnkContract.transfer(
  "0x972a7a92d92796a98801a8818bcf91f1648f2f68",   // bridge / WGNK address
  amountBN                                        // BigNumber amount (9 decimals)
);
await tx.wait();

Note

WGNK uses 9 decimals to match the native GNK token.

B) Wait for Finalization

The bridge only acts on finalized Ethereum blocks (about two epochs). Expect 15–20 minutes between the burn being mined on Ethereum and the native GNK appearing on Gonka. No further action is required on the Ethereum side — once the burn is finalized, the Gonka consensus validates it and releases the escrowed GNK automatically.

C) Check Your GNK Balance on Gonka

Query the native balance of the Gonka address derived from your key:

inferenced query bank balances <your_gonka_address> --node http://node1.gonka.ai:8000/chain-rpc/

You should see the released amount in ngonka (1 GNK = 10^9 ngonka).

Tip

If the balance does not appear after ~20 minutes, confirm that the burn transaction was finalized on Ethereum and that you are querying the gonka1… address derived from the same key that signed the burn (not a seed-derived Gonka account — see Addresses and keys).