BTC input identity and handling
Bitcoin is classified as a UTXO-native asset for this route. BTC uses a quote-selected representation. Native BTC exists on one recorded origin network; other network forms require representation checks. A native BTC deposit spends selected UTXOs, pays a BTC miner fee, can create change, and advances through Bitcoin confirmations.
WETH output identity and receiving
WETH is classified as a wrapped asset for this route. WETH uses a quote-selected representation. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.
WETH wrapped-token output check
WETH is a contract wrapper for ETH. It can be transferred as a token but cannot replace the native gas balance required by the network. On this route WETH is the destination token. Its token balance, approvals, and contract transfer behavior are separate from the native coin used for network gas.
Mistakes specific to BTC to WETH
Verify both asset identities, the selected network, current deposit instructions, and the receiving representation.
BTC source handling versus WETH receipt
A native BTC deposit spends selected UTXOs, pays a BTC miner fee, can create change, and advances through Bitcoin confirmations. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.