Transaction not yet indexed

5u51gf6PTKfPsJi8eEsbpi6MbnyHMMgjgpRTCyW8UQCcCjzP8eHKTHfQRaL5GpvZRMb28eX596FL4BCzyecnr73c

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