Arbitrum to Tron: TRC-20 and EVM boundary
On an Arbitrum source, the Nitro sequencer records L2 execution before Ethereum settlement completes; ETH funds gas and ERC-20 inputs can need approval. A Tron receipt belongs to a T-address as native TRX or the quoted TRC-20 contract; later activity consumes Tron resources or TRX fees. Arbitrum and Tron use different network identities, gas assets, wallet support, confirmation behavior, and destination conventions. Validate each side independently in the current route.

