Transaction not yet indexed

53siCUNNRASDaVEc4QVTkEgMFmf7aSgZghoJRUPdn5qDGoPfAeREJbFmyB7zofAyEecbQwZUrfSQhuqi7K2wJxAS

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