Transaction not yet indexed

PMKkLNB5Gkb21zrVhVRXdGksrNiFErKUowsXUxvYSa54Y2Z5CaqkVmvkiEcCCh6xt7q38ui9BknLxMmSPAz6yPn

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