Transaction not yet indexed

51987YcWBmtJCneyTxqXtYH3BRthdWGTzmEeWrFr35F274TsRfDHnGhe67ZypnPF3hZCvM7jLMhLLRWsNDt4ddtw

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