Transaction not yet indexed

641sark5QifAgFRXCkmdsdGfSKvhL7kaUfD2PdpH3m5s33MvHUtWNDMsKaRTCmgeemgvBUhxFJJLM4kd5qrYaLMa

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