func CheckBlockPairIntegrity(block interfaces.IAdminBlock, prev interfaces.IAdminBlock) error { if block == nil { return fmt.Errorf("No block specified") } if prev == nil { if block.GetHeader().GetPrevBackRefHash().IsZero() == false { return fmt.Errorf("Invalid PrevBackRefHash") } if block.GetHeader().GetDBHeight() != 0 { return fmt.Errorf("Invalid DBHeight") } } else { if block.GetHeader().GetPrevBackRefHash().IsSameAs(prev.GetHash()) == false { return fmt.Errorf("Invalid PrevBackRefHash") } if block.GetHeader().GetDBHeight() != (prev.GetHeader().GetDBHeight() + 1) { return fmt.Errorf("Invalid DBHeight") } } return nil }