Transaction not yet indexed

668yCDyFXebYuxcU2vYNJSPCyuk2VnQSVsD9vrwgaZ4ATRnqdih2UfDcLr1KBJABtxxEVUKtgT7zA17xJcF3pmV4

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