Transaction not yet indexed

668ZTuwLfH36UZpkdEXWA5D3smhTHye4vkL9fASbWeXdBnu3a4pCndNsDnSoSApczwY4XCg9WH6oTTCr6geDMzbD

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