Transaction not yet indexed

668BtcP2GLYzzHEKVs6smLktdmbwEBuuyS7LYKPiajMGoY99EmbPEtZ6PcZ4qgQ6UTqxpBemXeLPANuFs2Xnqztg

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