Transaction not yet indexed

51u6UpUTXRmc6i1fvUiXJpUxxcsVYA4YeaViS8nRf5VsyknQNtWtcT7pxey8chCpEMbMAR2KSqPVRTEHz1f67V89

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