Transaction not yet indexed

668Xz478eCZuQTXdEPyzEZaMuToNcTQndMonMj2nzQJ3PMKLTtgKSBLiZ5gkWqfxHA1RWC3ifg9tUj1E6mMzmrSA

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