Transaction not yet indexed

668exD546ZzamtpaSMHG5R5Q3myXW9n2aU3cKFcgQuQhZPMujFMpyG8pM4c2oRFKJsT1uPebaQac7TmVA73GdZ45

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