Algorithm 3 Data removal procedure
1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11:	Input:  block → new verified block Procedure        for i = 0; i < block.data.length(); i++) do              tx ← block.data.get(j)              if tx.status == 0x00…00 then                   tx_old ← getTransaction(tx.hash)                   Delete(&tx_old.data)