Transaction not yet indexed

668Gh4mXaR6fZagn7jbmeqTkBSG37GgbKQuD4bYxRfjFs4aMLS3Bo4g2QYsyrpCfreAWQWZhh5RDVcccKhbVLqnb

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