Transaction not yet indexed

668vbXsEGQyXM7mHNEQhNK4zizhatov6MCjqemzBWmAtDB5yj6ndYzbqy9YsH9HXCLTQuPGiofC6srequ4Vr1Ao4

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