Transaction not yet indexed

NJKBfPktjcSDQ2frtSq9d1jFAdM56sLztGAm3cDKLpzR68RiNbEqsX3MFXRRNbx59XJgMvcTU5R6VX7aAAMHvG7

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