Transaction not yet indexed

668yWWVdsS5XfXwAvH72oFSFzu81PaMdRAKnYNFkNvFRbEXqvYedFhPTH8yVKnfJoH2y7Pf6fbCJ8xdkN5eEC7PK

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