Transaction not yet indexed

668VkcwKXRJ5uNY8B5uq9eHsgT7zQ6AaPnY69mmfnDCMNWhSYjKkbVz6ftWqc9d2Vx7v2mRAkhyp5Wg9fgZrxVMf

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