uplong

Long or short BTC and ETH with 1x to 1000x leverage, settled in USDC on Solana. Winners are paid from losers, in order.

In short

Synthetic positions. There’s no order book. You trade at the uplong oracle price against a shared pool, so there’s no spread, no slippage, and no funding.
No fee to open, and none on losses. Only winning trades pay a trading fee, as a haircut on the gain that shrinks as the price move grows. Withdrawals and $LONG claims cost a flat 1 USDC. See Fees.
Winners are paid from losers. When you close a winning trade, your margin comes back at once and your profit is paid from the pool. If the pool is short, the rest waits in the payout queue and is paid in order as losses come in. Of every loss, 75% goes to the pool, 20% to $LONG buybacks, and 5% to the team.
Everything is public. Every deposit, trade, liquidation, and withdrawal is a transaction in a block on the uplong chain, a new block every half second. Look anything up in the explorer.