Uniswap v4 hook · PAXG-backed · Reflections in gold
AURUM is an ERC-20 built on a Uniswap v4 hook. Every swap is taxed in ETH, converted into PAXG — tokenized, vault-backed gold — and shared across every holder, on-chain, every five minutes.
How it works
AURUM never taxes your wallet. Value is captured only where trades happen — then routed, converted, and returned to holders as bullion-backed tokens.
Every buy and sell on the Uniswap v4 pool routes through the AURUM hook. Plain ETH works — a gateway pool bridges it.
3% on buys, 3–10% on sells, taken in ETH and sent to the Vault. Wallet-to-wallet transfers are never touched.
The Vault swaps that ETH into PAXG at no worse than the Chainlink fair price, then hands it to the Distributor.
Gold is split across every eligible holder, pro-rata to their balance — claimable anytime or pushed straight to your wallet.
The reward engine
The Distributor holds a gold reserve and pays it out on a snapshot — no staking, no lock-ups, no wrapping. Just hold above the minimum and the gold accrues.
Tax structure
All tax is taken in ETH and used to buy gold. The sell side scales with size and punishes same-block sandwich attempts.
A flat 3% on every buy route — through the ETH gateway or directly against PAXG in the gold pool.
3% under 0.1 ETH of value, 10% at or above it — measured per wallet over a rolling 10-minute window.
Security & anti-MEV
The mechanisms below are enforced by the contracts on every trade and conversion.
Every ETH↔gold conversion must clear within tolerance of the Chainlink ETH/USD and XAU/USD feeds — sandwiching the bridge just reverts the attacker's trade.
Any sell in the same block as a buy pays the full 10% — a classic buy/victim/sell sandwich is forced to cost more than it can extract.
Only the deployer can add liquidity to the gold pool, so no one can exit through a stealth range order and skip the sell tax, or JIT-farm buyers.
The token itself has no mint, no blacklist and no pause. It only mirrors balances so the Distributor can reach every holder.
If the reward system ever misbehaves, the owner can permanently disable tracking — AURUM reverts to a plain ERC-20. It can't be flipped back to freeze or censor.
Keeper gold buys are bounded by the oracle, capped and cooled-down; emergency sweeps let the owner recover funds intact if any piece breaks.
Architecture
Solidity 0.8.26 · built on OpenZeppelin, Uniswap v4-core & periphery, and Chainlink price feeds.
Questions
PAXG — Pax Gold. It's an ERC-20 where each token is backed by one fine troy ounce of London Good Delivery gold custodied by Paxos. Your rewards are claimable gold, not more of the AURUM token.
No staking. Just hold above the minimum balance and gold accrues to you automatically each round. Claim it whenever you like with claim(), or let the keeper bot push it to your wallet for you.
No. The Uniswap v4 hook only sees pool swaps, so plain transfers — to a friend, a cold wallet, anywhere — carry zero tax.
Trade against the Uniswap v4 pool. A zero-liquidity gateway pool lets routers bridge plain ETH in and out, so most aggregators can route a normal ETH buy or sell for you.
Straight back to holders. Sell tax is taken in ETH, converted to gold at fair price, and added to the same reserve that pays out every five minutes.
Get started
Buy through any Uniswap v4-aware router with ETH, hold above the minimum, and watch bullion-backed rewards land — round after round.
