Transaction not yet indexed

668hhKuJ9tCU9STg9QXVi5gSm2U3nc8vmBhfM2puNkEr8nSmbNvRcvuts3DgbExcJLPAS9HB8BKWgxVrMUTgEGeR

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