yaml style: blog status: draft generated_at: 2025-01-31

A bonding-curve reward token is a smart-contract mechanism where token price is a deterministic function of supply, and every trade generates automatic dividends distributed to all existing holders. Immute implements this pattern on Sepolia testnet, where a 10% fee on every buy and sell flows pro-rata to every IMT holder. Mainnet launch is coming soon — but developers can test the mechanics today at https://immute.io.

The price formula

Traditional token markets rely on order books or liquidity pools to discover price. A bonding curve replaces that external infrastructure with a mathematical function embedded in the contract itself.

Immute's curve follows:

P = k × S

Where: - P is the current price of one IMT in ETH - S is the total supply of IMT - k is a constant coefficient that defines the curve's slope

When someone buys IMT, the contract mints new tokens. The supply S increases, the price P increases, and the buyer receives tokens at the current on-curve price. When someone sells, tokens are burned, supply decreases, and price decreases accordingly.

This means price discovery is instantaneous and endogenous — no waiting for a market to clear, no slippage from shallow order books, no dependency on external liquidity providers.

Fee distribution: how the 10% compounds

On Immute, every buy incurs a 10% fee and every sell incurs a 10% fee. This fee is not a protocol tax or a team reserve — it is distributed automatically to every current IMT holder in proportion to their balance.

If the total IMT supply is S and your wallet holds b tokens, your share of any fee is:

Your share = b / S

If 1 ETH in fees is distributed and you hold 5% of supply, you receive 0.05 ETH. This happens on every transaction — buys and sells — automatically, via the contract's dividend logic.

The compounding effect is direct: as the token economy grows and trade volume increases, the fees distributed to holders scale proportionally. A holder who maintains their position through periods of activity accumulates rewards continuously, regardless of whether the token's USD price goes up, down, or sideways.

Contrasting with LP-based markets

In a typical AMM LP model, a token trades against another asset in a liquidity pool. Market makers must provide capital to both sides of the pool. Returns come from LP fees — but those fees are captured by liquidity providers, not by all token holders. Furthermore, liquidity providers face impermanent loss when the token's price diverges from the paired asset.

A bonding-curve reward token eliminates the need for external LPs. Price is a function of supply; no one needs to provision the other side of a trade. The capital efficiency is structural — every ETH that enters buys IMT at the on-curve price, and every ETH that exits sells IMT at the on-curve price.

The tradeoff is that bonding curves concentrate price exposure on the curve itself. A large sell moves the price down more significantly than in a deep LP pool. This is a design choice, not a flaw — and it's one that suits token models where the primary value accrual is the dividend mechanic rather than speculative price discovery.

Contrasting with team-allocated tokens

Most token launches distribute supply to teams, advisors, and early investors before or at genesis. This creates structural misalignment: insiders receive tokens at favorable prices while public participants pay market price. The 10% fee in such models flows partly to insiders who paid nothing or little for their positions.

Immute has no team allocation and no VC round. Supply starts at zero and grows organically as participants interact with the curve. There is no pre-mine, no allocation for founders, no hidden vesting schedules. Every IMT in existence was purchased through the contract — no one received tokens at preferential terms.

This means fee distribution flows exclusively to participants who bought at the curve — including early testers who entered when supply was minimal and latecomers who entered when the curve had climbed. All of them receive pro-rata dividends on equal terms.

The Feeder primitive and product-powered rewards

The dividend mechanic becomes more powerful when external products route value through the curve. Immute exposes a Feeder contract (address 0xa87e7c25c2f754C7D6bFc9b4472E0c36096E4bF6 on Sepolia) that any integrating product calls to process payments.

When a product accepts IMT as payment:

• 99% of the payment goes to the product's own treasury — this is the integrating platform's revenue - 1% of the payment is routed through the bonding curve — this triggers the 10% fee, which distributes to all IMT holders

This makes Immute a product-powered reward token. The dividends aren't funded by speculative trading alone — they're underwritten by real product transactions. Planned integrations include:

• Neptime.io — creator monetization where viewers tip IMT on uploaded videos, driving fee distribution through the Feeder - Valiep.com — subscription purchases routed through the Feeder - Discovire.com — discovery-layer purchases, also Feeder-routed - ByteOdyssey — in-game payments on a game development platform, routed through the Feeder

Each integration adds transaction volume that flows through the curve, generating dividend events that reward all IMT holders — regardless of which product originated the trade.

Testing the mechanics on testnet

If you're a developer or an informed participant who wants to see how the fee distribution, price curve, and Feeder interactions work in practice, IMT is live on Sepolia (chainId 11155111).

Testnet ETH is free. You can get some from:

• https://sepolia-faucet.pk910.de/ — proof-of-work faucet, no signup required - https://www.alchemy.com/faucets/ethereum-sepolia — requires a free Alchemy account

Connect a wallet (MetaMask, Rainbow, or any EOA-compatible wallet) to Sepolia, navigate to https://immute.io, and interact with the IMT V8 contract (0xB575A8760c66F09a26A03bc215D612EA2486373C) to buy, sell, and watch the dividend mechanics in real time. Both the IMT contract and the FeederV9 contract are verified on Sepolia Etherscan — review the source, trace the events, and test the math yourself.

Mainnet launch is coming soon. The goal of this testnet phase is validation — not speculation. Help us stress the contracts, surface edge cases, and confirm that the bonding-curve reward token mechanic behaves exactly as the design specifies. Every interaction on testnet is a contribution to that validation.

The contract source is open. The math is deterministic. The fee distribution is on-chain and verifiable. If you're building in DeFi or evaluating reward-token models, this is a structure worth understanding from the inside — not just from documentation.

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Want to dig deeper into how Immute works on-chain?

• Read the whitepaper — full technical spec of the bonding curve, fee distribution, and Feeder primitive.

• Audit + V4 postmortem — every finding ever raised against the contracts and how it was resolved.

• Live leaderboard — top holders, dividend earnings, referral payouts.

• On-chain charts — supply curve, ETH balance, Feeder fee flow.

• immute.io — connect a wallet and try the mechanics on Sepolia testnet (mainnet launch coming soon).