Compute the 4-byte function selector and event topic0 from a Solidity signature such as transfer(address,uint256).
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.02 USDC | 0xb531...DBDa |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.02 tokens | DUPiup...Em8s |
| Polygon | exact | $0.02 USDC | 0xb531...DBDa |
| Arbitrum One | exact | $0.02 USDC | 0xb531...DBDa |