t_r stands for time. Building owners can choose to pay t_r amount of $Lay007 mined to restore the destroyed building, or they can wait for restoration staking period(t_r amount of time) to restore it.
trā=7Ā days
The value of t_r may be adjusted by governance.
Note: Please note that all figures are subject to change by governance.
Note: Keep in mind that all tokens and NFTs spent on the upgrade are irrevocable and non-refundable.