Transaction not yet indexed

668RtbXqQ9zMqCwABYXeKvwauJmYhsYAN48tsQuz8vB2V278tperKLLHwHT57yP6N3cA81mfqbckajV2q9Y7B5vi

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.