# Platform

**Epoch duration:** 6 hours Deposits / Withdrawal of GRAIL into the Boardroom will lock GRAIL for 4 epochs (24hrs) and SKULL rewards for 2 epochs (12hrs).

The above is the same for SKULL rewards claiming, this will lock staked GRAIL for 4 epochs (24hrs) and the next SKULL rewards can only be claimed after 2 epochs (12hrs).

**80%** as Reward for Boardroom GRAIL stakers **15%** goes to DAO fund **5%** goes to DEV fund **Epoch Expansion:** Current expansion cap base on SKULL supply, if there are bonds to be redeemed, 65% of minted SKULL goes to treasury until it’s sufficiently full to meet bond redemption. If there is no debt it will follow max capped expansion rate.

**Next Epoch** indicates a countdown timer to the next calculation of seigniorage. (Each epoch duration lasts for 6 hours)

**APR** refers to the simple returns in USD value relative to the amount of GRAIL staked (USD value).

*Note:* *APR fluctuates from time to time and is dependent on certain factors such as:* Price of SKULL Price of SKULL Amount of SKULL staked in Boardroom\\

**Boardroom on Contraction Periods**

The Boardroom will **not** mint any SKULL while TWAP < 1.01

Debt Phase takes place on the expansion epochs that start after a contraction period where there are still CRYPT to be redeemed.

65% of Expansion during Debt Phase is allocated to the Treasury Fund to prepare for the CRYPT Redemption. This amount is still reserved whether or not CRYPT holders are redeeming bonds or not. Once SKULL in treasury is sufficiently full to meet all circulating bond redemption, expansion rates will resume to normal.

CRYPT emitted per epoch during contraction periods can be found on Regulations.

**Grail reward pools**

Stake your LP to earn GRAIL shares

Shares Pools (Shares Reward) available for 200 days:

**TOMB-SKULL LP:** 18000 Shares \
**TOMB-GRAIL LP:** 17000 Shares \
**SKULL-GRAIL LP:** 6000 Shares
