Fees

This page lists every fee in Argonmine in one place: the rate, who pays it, where it goes, who can change it and how you can check it yourself. The rates are the ones in force on mainnet since its launch on 28 October 2026, 12:00 UTC, except the treasury share, which applies from block 300.

Is there a fee on mining rewards?

Yes, from block 300. From mainnet block 300, every block pays 1% of the block subsidy to the project treasury: 0.5 ARG of today's 50 ARG, so the miner receives 49.5 ARG plus the fees. The share halves with the subsidy. This is a consensus rule: a block that leaves the treasury out is invalid. Transaction fees are not touched; they stay with the miner, as in Bitcoin. Blocks 1 to 299 paid the miner in full. There is no premine: the treasury's coins are mined like every other coin. This was decided on 28 October 2026.

The only other part of a block that can go to someone else is a referral share, and only if you accepted an invite yourself (see Referral share below).

The treasury

Running a node that does not mine earns nothing from the protocol. The treasury may fund public seed nodes later.

Every fee at a glance

From block 300 the miner keeps the rest of each block: 99% of the subsidy (49.5 ARG at today's subsidy) and every transaction fee, less any referral share.

Network fee

Every transaction pays a small fee in ARG. It goes to the miner who puts the transaction in a block. This is how miners are paid once block rewards become small.

• Rate. The sender chooses it, in units per byte (1 ARG = 100,000,000 units). Nodes relay a transaction only if it pays at least 1 unit per byte. A transaction with more than two outputs of uARG, wARG or another asset adds 546 units for each extra such output, so spam with many tiny asset outputs costs about what it would in ARG.
• What the app pays. The browser wallet pays 2 units per byte. A simple payment is about 200 bytes, so its fee is about 400 units (0.000004 ARG). The app shows the exact fee before you confirm.
• Paid in ARG only, also when you send uARG or wARG. If your wallet holds no ARG, the app first swaps the smallest allowed amount of your uARG or wARG to ARG (0.01 by default). That ARG pays this fee and many later ones. The swap spread applies to that small swap.
• Swaps. The swap service pays the network fee of every swap transaction itself.
• Who controls it. You, through your wallet. Node operators set the relay minimum. Miners choose which transactions to include, and nodes put the best-paying first.
• How to check. Every transaction page on the explorer shows the fee and the fee rate. A block's reward transaction shows the subsidy plus all fees paid to the miner, less the treasury's 1% of the subsidy from block 300.

Bridge fees

The bridge charges 1% on deposits and 1% on withdrawals. Both are taken by the vault contract on the EVM chain, in the token you deposit or receive.

• On a deposit, the vault keeps 1% and credits the rest. You receive uARG for the net amount. Example: deposit 100 USDC, receive 99 uARG.
• On a withdrawal, the vault keeps 1% of the payout and sends you the rest. Example: withdraw 100 uARG, receive 99 USDC.
• Rounding always favours you: a fee on a tiny amount rounds down, so you never pay more than 1%. A 6-decimal token cannot pay fractions below 0.000001; that dust, less than a millionth of a dollar, is not paid out.
• Minimums. The smallest deposit and the smallest withdrawal are 10 USDC or USDT on Ethereum, where gas is expensive, and 2 on Base, Arbitrum One and BNB Chain. These are minimums, not fees.
• Where it goes. To the treasury. The fee first collects in the vault as surplus: the part of the vault's balance above what backs the uARG in circulation, and the project moves it to the treasury regularly. The vault tracks that backing (its obligations) for each token, and the surplus is never needed to back uARG. Only the vault's owner can withdraw surplus (withdrawSurplus), and never more than the surplus. The backing can leave the vault only as a withdrawal signed by the guardians.
• Who controls the rate. The vault's owner sets the rates in the contract. The contract caps each fee at 10%. A fee change waits behind the vault's timelock, 7 days on every mainnet vault, so you see it coming, and the withdrawal fee can rise by at most 1 percentage point per change. The owner is currently one wallet of the project, not a key on a server. A multisig owner is planned (see below).
• Network fees and gas. These are not bridge fees; they go to the networks involved.
  • Depositing from an EVM wallet costs you that chain's gas for the approval and the deposit.
  • With a deposit address you pay only the gas of your own transfer to it. The bridge pays the gas to move it into the vault.
  • A withdrawal costs you no EVM gas: the bridge pays the gas of every payout. Your payment of uARG to the withdrawal address is an ordinary Argonmine transaction and pays the usual network fee.
• How to check.
  • The bridge page shows the fee and the amount you will receive before you confirm.
  • https://bridge.argonmine.com/api/status lists deposit_fee_bps and release_fee_bps for every chain (100 means 1%), the backing and the surplus per token, and the totals backing_units and surplus_units.
  • Each vault's depositFeeBps(), releaseFeeBps(), obligations(token), surplus(token) and owner() can be read on that chain's block explorer. The vault addresses are listed in Bridge, Chains and tokens.
  • Every deposit and payout event on the vault records its fee.

Details: Bridge, Fees.

Swap spread

The swap service trades ARG, wARG and uARG with your wallet on the Argonmine chain. Its price includes a spread.

• Rate. 1% on each swap between ARG and uARG, and between wARG and uARG, in either direction. Swaps between ARG and wARG have a wrap fee, which is 0% today.
• How it works. You receive 1% less than the plain price would give. Example: at a price of 0.10 uARG per ARG, swapping 100 ARG gives 9.9 uARG instead of 10.
• Where it goes. To the treasury, automatically. The swap service books each swap's 1% in the coin you paid (ARG for ARG and wARG, uARG for uARG), counts it as earned once the swap has 6 confirmations, and pays it to the treasury address in one payment once a coin's earned fees reach 1 ARG or 1 uARG. Fees not yet paid out are never used for swaps.
• Who controls it. The operator of the swap service, through its settings (-spread-bps, -wrap-fee-bps and the price). The price is a setting, not a market: 1 ARG = 0.10 uARG before the spread.
• When it starts. The swap service starts trading once it holds mined ARG that has unlocked, about a day after launch.
• How to check. The app shows the rate and the amount you receive before you confirm, and your wallet checks the swap transaction against that quote before it signs. The service's current settings are public at https://app.argonmine.com/swap/api/info (spread_bps, wrap_fee_bps, and the rate of each pair after fees).

Details: Swaps.

Referral share

• Rate. 5% of each block you mine, counting the subsidy and the transaction fees. From block 300 it is 5% of what remains after the treasury's 1% of the subsidy. It applies only if you opened someone's invite link and pressed Accept.
• Who pays. You, the miner. It comes out of your reward. No new coins are created for it.
• Where it goes. To the person who invited you, as a second output of the block's reward transaction. It is paid by the chain the moment the block is mined. Nobody holds it in between.
• Who controls it. You decide whether to accept, and you can remove the inviter at any time on the Dashboard. The rate is set by the operator of the work server (the explorer's -referral-share, at most 50%). It applies only to browser miners who get their work from the explorer.
• How to check. The Mine page shows the share while it applies. On the explorer, a block mined with a referral has an output to the inviter in its reward transaction, beside the miner's (and, from block 300, the treasury's).

Details: Mining, Invite links.

Where the fees go next

The bridge surplus can be withdrawn only by the vault owner, currently one wallet of the project, and the swap spread collects in the swap service's wallet. The project moves both to the treasury regularly. The plan is:

• A treasury on each EVM chain whose keys are not on any server: a multisig wallet (Safe) that needs 2 of 3 signatures, with the keys on separate devices. The bridge surplus is withdrawn only to it.
• Vault ownership moves to that multisig.
• Public fee records: a Treasury page on the explorer listing every fee received and every payment out, per coin and chain.

The Roadmap tracks these items.