RADIUM Documentation

RADIOACTIVE DECAY ON ROBINHOOD CHAIN

$RADIUM is not a tax token. It is a standard ERC-20 with a fixed supply of 1,000,000,000 tokens. The deflationary mechanism operates entirely outside the token contract, through LP fee collection and autonomous burns. Every action is verifiable on-chain.

RADIUM is also more than the token. radium.life/trade is a full trading desk on Robinhood Chain: spot swaps, cross-chain bridging, and leveraged long/short positions on tokenized equities and crypto, all non-custodial from your own wallet. The desk charges 0.5%, and that fee is routed into the same hourly buy-and-burn. It is a second fee stream feeding the same decay loop, which means the token's supply now falls on volume the token itself never has to see. The mechanics are documented in full under Trading Desk.

Key Properties

Decay Mechanism

Burning fees is not the hard part. A launch tool can switch that on in one click, and the switch will burn exactly one thing: the fees the token's own pool generates. What a switch cannot decide is where the fees come from.

$RADIUM's supply reduction is funded by a whole trading venue rather than by its own pool alone. Every product Radium builds sends what it earns to the same address, in whatever asset it earns, and one bot turns all of it into burned supply. Adding a product does not mean redesigning the mechanism. It means pointing one more fee at an address that already exists.

Where The Fees Come From

• The $RADIUM/NVDA pool: 1% of every swap through the pool. 100% of the creator fee it pays out goes to the decay wallet and is burned.
• Spot swaps on the desk: 0.5% of the input amount on every swap made through our swap desk, in whatever token is being sold. Most of these swaps have nothing to do with $RADIUM.
• Bridging: 0.5% on cross-chain swaps routed through the desk.
• Leverage: 0.5% of every deposit into a leverage account, in USDG. Someone opening a position on a tokenized stock funds a $RADIUM burn without ever holding $RADIUM.
• Everything built next: the same address, the same bot, no new mechanism and no migration.

The Decay Loop

• Fees land in the decay wallet: 0x3249450070228aCeeb545bcc4724581d1753936A. Pool fees are collected into it; desk fees are transferred into it by the trade itself, as a separate on-chain transfer anyone can read.
• The bot runs once an hour: a permissionless cycle that collects creator fees from the pool and then reads every token balance the wallet holds. It is an on-chain transaction with a public hash.
• Anything that is not $RADIUM or NVDA is swapped to NVDA: the bot discovers what it is holding rather than being told. A fee earned in USDG, ETH or a tokenized stock is routed through the chain's own pools without anyone configuring it.
• NVDA is used to market-buy $RADIUM: the buy happens in the open pool, at the going price, like anyone else's.
• All collected $RADIUM is sent to the burn address: 0x000...dEaD. Tokens sent here are permanently unrecoverable.
• Supply decreases permanently: burned tokens can never re-enter circulation. Total supply trends toward zero.

Why This Is Different

• Not limited to its own pool: a fee mode chosen at launch can only ever burn what the token's own pool earns, which means the burn stops when the token stops trading. Radium's burn is fed by trades in other people's tokens. Someone taking leverage on a tokenized stock has never touched $RADIUM and funds a burn anyway.
• Asset-agnostic: the bot sweeps whatever it finds in the wallet. It does not need to know in advance which token a future product will earn its fee in.
• Extensible for as long as the project exists: an immutable fee mode can never gain a new source. This one gains a source every time a product ships, and needs no contract change to do it.
• No dev wallet funding burns: fees fund everything. There is no treasury allocation for buybacks.
• No tax in the token contract: $RADIUM is a standard ERC-20. No transfer tax, no reflection, no rebase. The fee is in the pool and at the desk, not in the token.
• Externally driven: the NVIDIA stock market provides a catalyst the token does not control. AI demand, earnings, chip export policy: real-world events move the price of the quote asset, which puts the pool off-price and pulls in the volume that funds the burn.
• 100% verifiable: every fee transfer, every collection and every burn is an on-chain transaction with a public hash. The burn address balance only goes up.

NVDA Pairing

$RADIUM is paired with tokenized NVIDIA (NVDA) stock on Robinhood Chain. NVDA was chosen as the quote asset for specific reasons:

Why NVIDIA?

• Highest-volume stock globally: NVDA consistently leads daily trading volume across all US equities. More real-world interest = more on-chain trading.
• AI narrative alignment: NVIDIA sits at the center of the AI revolution. Every datacenter expansion, every new AI model, every chip order moves NVDA. This provides constant catalysts for trading activity.
• High volatility: NVDA regularly moves 3-8% in a single day on earnings, export policy changes, or competitive news. Volatility drives trading. Trading drives fees. Fees drive decay.
• Universal recognition: Everyone knows NVIDIA. This removes the friction of explaining what the quote asset is. "RADIUM is paired with NVIDIA" is immediately understood.

PAIR Platform

$RADIUM is launched through PAIR (pair.fund), a permissionless token launchpad on Robinhood Chain.

Architecture

Key Properties

• Non-custodial: Your wallet signs every transaction directly against the smart contracts. PAIR never holds funds.
• LP is permanently locked: Liquidity cannot be removed. There is no rug pull vector from the LP side.
• Permissionless fee collection: Anyone can call the fee collection function. The decay bot is a convenience, not a gatekeeper.

Fee Structure

Every swap on the RADIUM/NVDA pool generates a 1% fee. The creator fee it pays out is collected by the decay bot and burned in full.

Fee Flow Example

User buys $10,000 of RADIUM with NVDA
├── Swap fee: $100 (1%)
│   └── Creator fee → decay wallet
│       ├── RADIUM portion → burn address
│       └── NVDA portion  → swap to RADIUM → burn address
└── User receives: ~$9,900 of RADIUM

Since the trading desk went live there is a second fee stream on top of this one: 0.5% of every swap, bridge and leverage deposit on the desk, also collected and burned by the same bot. See Desk Fees & the Burn.

Decay Bot

The decay bot is an automated script that runs every hour. Its sole purpose is to collect accrued creator fees from the PAIR pool and burn them.

Bot Cycle (every hour)

1. COLLECT FEES
   → Call PAIR fee collection (permissionless on-chain call)
   → Receive accrued RADIUM + NVDA fees to bot wallet

2. PROCESS NVDA FEES
   → Swap all collected NVDA → RADIUM via Uniswap V4
   → Slippage: 1-2% max

3. BURN ALL RADIUM
   → Transfer entire RADIUM balance to 0x...dEaD
   → Log: tx hash, amount, NVDA price, timestamp

4. REPEAT
   → Next cycle in 1 hour

Bot Properties

• Dedicated wallet: The bot operates from its own EOA, funded with a small amount of ETH for gas. It holds no tokens between cycles.
• Permissionless: The fee collection function on PAIR is public. If the bot goes offline, anyone can call it manually.
• Verifiable: The bot wallet address is public. Every transaction is visible on the block explorer.
• Gas-efficient: Robinhood Chain gas costs are minimal (fractions of a cent). The bot's operating cost is negligible.

Trading Desk

Everything above describes the token. This section describes the product. radium.life/trade is a full trading terminal running on Robinhood Chain: spot swaps, cross-chain bridging, and leveraged positions on tokenized equities and crypto. It is not a separate business from the burn. It is a second source of fees feeding the same decay loop.

What the desk is

Swap & Bridge

The swap box handles three things through one interface: swapping between tokens on Robinhood Chain, swapping into or out of RADIUM, and bridging assets between Ethereum and Robinhood Chain.

Token catalogue

The picker lists every asset the desk can route: tokenized equities (NVDA, ORCL, PLTR and the rest of the Robinhood Chain equity set) alongside crypto (ETH, WETH, USDG and others). The list is discovered from the chain rather than hardcoded, so a token newly listed on Robinhood Chain appears in the picker and in leverage without the desk needing an update.

Prices come from the live pools. Where a token has no liquid pool yet, the desk shows no price rather than a stale or invented one. That is the reason a handful of newly listed equities appear without a figure next to them.

How a swap is routed

• Quote: The desk asks the on-chain quoter what the pool would actually pay for your input size, including price impact. That is the number shown as "you receive", not a mid-price estimate.
• Desk fee: 0.5% is taken off the input and sent to the decay wallet in the same transaction batch. It is shown before you confirm.
• Slippage floor: Your slippage setting is applied to the quote to produce a minimum-received figure. The swap reverts rather than filling below it.
• Approval: ERC-20 inputs need a one-time approval to the router. Native ETH does not.
• Execution: The trade is submitted from your wallet directly to the Uniswap router. The desk is never an intermediary holding your funds.

RADIUM is routed differently

RADIUM/NVDA is a Uniswap v4 pool sitting behind the PAIR hook. The v3 quoter and router that serve every other Robinhood Chain pair cannot see it. When either side of your swap is RADIUM, the desk switches to the v4 router and the pool's own parameters (fee tier 10000, tick spacing 200, the PAIR hook address) instead. This is transparent: you pick the tokens, the desk picks the venue.

Note that a RADIUM swap therefore pays two fees: the pool's own 1% (whose creator fee is burned in full, as described under Fee Structure) and the desk's 0.5% (also burned). Both end up in the same place.

Bridging

Robinhood Chain is an Arbitrum Orbit rollup, so it inherits Arbitrum's canonical bridge design. The desk uses the standard gateways rather than a third-party bridge:

Withdrawals to Ethereum are subject to the rollup's challenge window. This is a property of Orbit rollups, not a choice the desk makes. Deposits into Robinhood Chain are fast.

Perpetuals & Leverage

The leverage side lets you take long or short positions with leverage on tokenized equities and crypto, margined in USDG. Orders are matched off chain and settled on chain: matches are quick and cheap, while deposits and withdrawals are on-chain transactions you sign yourself.

Getting set up

• Connect your wallet: MetaMask, Rainbow, Coinbase Wallet, Trust, Rabby, Ledger, or anything reachable over WalletConnect. On a phone the wallet opens, you approve, and you come straight back.
• Deposit USDG: Move USDG from your wallet into your leverage account. This is an on-chain deposit; the desk takes its 0.5% and the remainder is credited. The minimum deposit is roughly 1 USDG, so enter at least 1.1 for it to still clear the floor after the fee.
• Enable trading (two signatures): Your wallet signs to derive a trading key, then signs once more to register that key against your account. The trading key is what signs your orders afterwards, so you are not approving a wallet transaction on every trade.
• Trade: Pick a market, pick a side, set your size and leverage, place the order.

The two signatures are a one-time setup. If your account already exists and only the registration is outstanding, the button says "Enable trading (one signature)" instead. The derived key is stored in your browser and never leaves it.

Positions and margin

Positions are isolated-margin: the margin you commit to a position is the most that position can lose. The desk shows an estimated liquidation price before you open, derived from your entry, your leverage and the market's maintenance-margin fraction:

long:   liq = entry × (1 − 1/leverage) / (1 − mmf)
short:  liq = entry × (1 + 1/leverage) / (1 + mmf)

entry     = mark price at open
leverage  = your chosen multiplier
mmf       = the market's maintenance margin fraction

This is an estimate shown for sizing. The live liquidation price is whatever the venue's risk engine computes against your actual filled entry, funding accrued, and the market's current parameters.

Markets

Both tokenized equities and crypto are tradeable, long or short, whenever the venue is quoting them. Equity markets follow the underlying market's hours, but the desk prices from the mark price when the orderbook is thin or empty rather than refusing the trade. An empty book is not the same thing as a closed market.

Withdrawing

Withdrawals go from your leverage account back to your own wallet. They are signed with your trading key, which is why the desk asks you to enable trading before it will let you withdraw: an unregistered key produces a signature the venue cannot verify. While a withdrawal is in flight the desk shows it as pending, and clears the notice as soon as the USDG lands in your wallet. These settle in minutes.

Desk Fees & the Burn

This is the part that connects the desk back to the token.

The desk fee is charged once, at the point of entry, and never again. There is no fee per trade inside the leverage account, no fee to close, and no fee to take your money out.

Where the fee goes

Desk fee (ETH, USDG, or whatever you traded)
   ↓
Decay wallet  0x3249450070228aCeeb545bcc4724581d1753936A
   ↓  (hourly, same bot that collects PAIR fees)
Swap the balance → RADIUM
   ↓
Burn address  0x000000000000000000000000000000000000dEaD

The fee is deliberately not sent straight to the burn address. Burning USDG or ETH destroys the fee token and does nothing for RADIUM's supply. Routing it to the decay wallet means the bot converts it into an actual RADIUM market buy first, and burns what it bought, so desk volume produces both buy pressure and supply reduction, not just supply reduction.

Worked example

Someone swaps $10,000 of ETH into tokenized NVDA on the desk.
They never touch RADIUM.

├── Desk fee: $50 (0.5%) → decay wallet
│      └── next hourly cycle: $50 of RADIUM bought → burned
└── They receive: ~$9,950 of NVDA

Someone else deposits $5,000 USDG to trade with leverage.

├── Desk fee: $25 (0.5%) → decay wallet
│      └── next hourly cycle: $25 of RADIUM bought → burned
└── Credited to their leverage account: $4,975

Custody & Security

What the desk can and cannot do

Slippage and MEV

Every swap carries a minimum-received figure derived from your slippage setting. If the pool moves against you past that point between quoting and execution, the transaction reverts and you keep your input rather than being filled at a bad price. The default setting is deliberately tight; raising it widens the window in which a sandwich is profitable against you.

API access

The desk's upstream data and venue calls are proxied server-side. Endpoints and credentials are not present in the page source and do not appear in your browser's network tab. If the proxy is unreachable the desk falls back to calling providers directly, so it keeps working either way.

What you should still check

• Leverage is leverage: A liquidation takes the margin committed to that position. The estimated liquidation price is an estimate, not a guarantee.
• Tokenized equities are not equities: You hold a token that tracks a stock, on a chain, subject to that token's own liquidity and its issuer's terms.
• Check the address you are swapping into: The picker shows contract addresses. Verify them on the explorer if a token is unfamiliar.
• Bridging out to Ethereum is slow by design: The rollup challenge window applies. Plan around it.

Half-Life Calculation

The "half-life" displayed on the site is the projected number of days until 50% of the current remaining supply is burned, based on the current daily burn rate.

Formula

remaining_supply = total_supply - total_burned
daily_burn_rate  = average RADIUM burned per day (rolling 7-day)
half_life_days   = (remaining_supply / 2) / daily_burn_rate

Example

Total supply:    1,000,000,000 RADIUM
Total burned:      50,000,000 RADIUM
Remaining:        950,000,000 RADIUM
Daily burn rate:    1,200,000 RADIUM/day

Half-life = (950,000,000 / 2) / 1,200,000
          = 475,000,000 / 1,200,000
          = ~396 days

The half-life is dynamic. As trading volume increases, the burn rate increases and the half-life shortens. Conversely, if volume drops, the half-life extends. This creates a natural feedback mechanism:

• High volume → high fees → fast burns → short half-life → bullish signal → more volume
• Low volume → low fees → slow burns → long half-life → accumulation opportunity

Tokenomics

Supply Trajectory

Assuming constant daily volume of $100,000:

Daily fees:     $1,000 (1% of volume)
Creator fee:    $700, burned in full
Daily burn:     ~$700 worth of RADIUM

At $0.001/token: ~700,000 RADIUM burned/day
Half-life at launch: ~714 days

At $0.01/token:  ~70,000 RADIUM burned/day
Half-life: ~7,142 days

Note: as supply decreases and price increases,
fewer tokens are burned per dollar, but each
remaining token is worth more. This is exponential
decay: it slows as it progresses, but never stops.

Contract Addresses

FAQ

Is there a token tax?

No. $RADIUM is a standard ERC-20 with zero transfer fees. The 1% fee is in the Uniswap V4 pool, not in the token contract. You can transfer RADIUM freely between wallets with no tax.

Can the LP be pulled?

No. Liquidity is permanently locked via PAIR. The LP tokens are burned at launch. There is no function to remove liquidity.

Is the supply really fixed?

Yes. The token contract has no mint function. New tokens cannot be created. Supply only decreases through burns.

Can I verify the burns?

Yes. Check the burn address 0x...dEaD on the block explorer. Every burn transaction is public and timestamped. The decay bot wallet is also public, so you can audit every collection and swap.

What happens when all tokens are burned?

Mathematically, exponential decay means the supply approaches zero but never reaches it. In practice, the burn rate slows as supply decreases (fewer tokens per dollar of fees). There will always be some tokens in circulation, but the total supply trends down permanently.

Do I have to hold RADIUM to use the desk?

No. The desk is a general trading terminal for Robinhood Chain: you can swap ETH into NVDA, or long PLTR with leverage, without ever touching RADIUM. The 0.5% desk fee is what connects the two: it is converted into a RADIUM buy and burned every hour regardless of what you traded.

Does the desk hold my funds?

No. It is non-custodial. Spot swaps go from your wallet to the Uniswap router. Leverage balances sit in your own account on the venue's contract and are withdrawable by you with your own signature. The website is a front end. It cannot move your money and cannot trap it.

What does the desk charge?

0.5% on a swap, a bridge, or a leverage deposit, disclosed before you confirm. Nothing to open or close a leveraged position, and nothing to withdraw. See Desk Fees & the Burn.

Why does enabling leverage trading need two signatures?

The first derives a trading key from your wallet; the second registers that key against your account. After that your orders are signed with the trading key, so you are not approving a wallet transaction on every trade. It is a one-time setup and the key never leaves your browser.

Why do some tokens show no price in the picker?

Because they have no liquid pool on Robinhood Chain yet. The desk prices from live pools, so rather than show an invented or stale number it shows none. Those tokens become tradeable as soon as liquidity exists.

Why Robinhood Chain?

Robinhood Chain (Arbitrum Orbit L2) offers tokenized stocks on-chain. This enables $RADIUM to be directly paired with real stock tokens like NVDA, creating a bridge between traditional equity markets and DeFi. Gas costs are near-zero, making frequent bot operations economically viable.

Decaying since block one.