Transaction not yet indexed

668Pz7LZ2BtDYVaS2nHUS21Tjn6ziEE2u8hPG6KDoAk1sQVbS9dzoFP1UeKEdP4fXtQjs9AYP8rSjYZkphpLQvkn

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