Transaction not yet indexed

5556k9AeFpyzh5KxumTyXEGxxjiBtNXTY2qaGc8dRYVsUESwN1hc2wazf8Kp2Df7rW8Dmrx2p4MHZ7JvMR8h5xu1

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