Transaction not yet indexed

668YWe345RYUb8FQAwNC2AXJYhtsvAWALXjCQjWC4mNVajnEhgwCufCyWvBAKRsmpFYqpyynVSkV6TdWyTfnX6CW

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