Transaction not yet indexed

668DjSQxVcLSGDT7C8AHSKiXdFxCLvuT9KfiroqbUj6J3MNTBziVXB3Y3MmZxgDQAjSW5msJjsYBxVFs2egoUQRb

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