SeatToken, StakingPool & LpLocker (Architecture)

#SeatToken

Contract: contracts/src/SeatToken.sol — reference: SeatToken.

A plain OpenZeppelin ERC-20 (SEAT / SEAT, 18 decimals) with the entire supply — 1_000_000_000e18 — minted once to initialHolder in the constructor. There is no mint function. Bucket allocations (liquidity 40%, community 20%, team 15%, treasury 12%, leader incentives 8%, staker bootstrap 5%) are post-TGE owner transfers, not constructor magic — the deploy script deliberately does not invent bucket addresses.

#StakingPool

Contract: contracts/src/StakingPool.sol — reference: StakingPool.

Stake $SEAT, earn pro-rata USDG from desk fee harvests. Classic accumulator design (accUsdgPerShare with 1e18 precision, per-user rewardDebt):

• Desks push the staker fee slice via notifyReward(amountUsdg), which pulls USDG from the vault and folds it into the accumulator.
• Rewards that arrive with zero stakers are held as undistributedUsdg and fold in when staking resumes — they are not lost and not redirected.
• stake / unstake / claim settle pending rewards before moving balances. No rebase, no vote-to-print.

#LpLocker

Contract: contracts/src/LpLocker.sol — reference: LpLocker.

Holds one Uniswap v3 position NFT for at least 365 days (MIN_LOCK). The owner locks with lock(nft, tokenId, duration, beneficiary); withdraw() works only after unlockTime and sends the NFT to the beneficiary. The cited NonfungiblePositionManager on 4663 is 0x73991a25C818Bf1f1128dEAaB1492D45638DE0D3. Seeding the SEAT/USDG pool is a manual owner transaction — the deploy script logs "seed+lock later" and never mints a position itself.

#How the suite connects

#Failure modes