Smart contract check by o3-mini-high

Prompt: Please - check attached smart contract, consider the Key Token Principles * No presale, ICO, IDO, or private sale. * No allocations for the creator, developers, or investors. * No hidden reserves or special privileges for any address. * Distribution should be free, requiring only network gas fees. * No post-deployment control: contract is immutable once deployed. * Open-source and verifiable by anyone.

Thought

Evaluating compliance

I'm reviewing a Solidity smart contract to ensure it aligns with Key Token Principles, focusing on no presale, ICO, IDO, or private sale, and no creator allocations or hidden reserves.

Confirming token allocation

I’m mapping out the contract to ensure no hidden reserves or special privileges. Tokens minted to the contract address are distributed equally through a claim function with fairness logic.

Evaluating token fairness

I'm confirming no special allocations, hidden reserves, or backdoors. The distribution is free of charge, solely requiring gas fees, and the contract uses a standard fairness check for claims.

Confirming compliance

I'm noting the contract's immutability and open-source nature. While the claim function incurs gas fees, no post-deployment control or special allocations are present, aligning with the principles.

Ensuring contract integrity

I'm detailing the review of the smart contract, confirming it aligns with principles like open-source code, decentralized claims, and preventing hidden allocations or sales.

Taking a closer look

He’s analyzing the randomness mechanism using block.prevrandao and the "chunkAllowedByParticipants" logic for chunk unlocking. The transfer function in the claim() function is standard and secure.

Confirming details

I'm examining the initial reward's alignment with the ERC20 token's decimal precision, the nonReentrant attribute for security, and the maximum address claim restriction of 2 tokens.

Evaluating fairness and functionality

I’m weighing the 2-token maximum per address, ensuring network gas fees, verifying token distribution fairness, and noting the lack of an upgrade function and import from OpenZeppelin.

Mapping the logic

I’m piecing together that chunk unlocking ties to participation, using block.prevrandao for randomness. There are no special privileges or allocations, ensuring fairness and decentralization.

Reasoned about smart contract design for 9 seconds

Answer

Below is an overview of the review of your smart contract relative to the stated Key Token Principles:

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1. No Presale, ICO, IDO, or Private Sale

• What the Code Does: In the constructor, the entire total supply is minted directly to the contract’s own address. There is no logic to allocate any tokens to any external address (including the deployer) before the public distribution begins.

• Assessment: Pass. All tokens are held by the contract, and distribution occurs solely via the public claim() function.

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2. No Allocations for the Creator, Developers, or Investors

• What the Code Does: There are no special allocations, minting functions, or reserved addresses for the team or investors. The constructor mints tokens only to the contract, and every token transfer happens as a result of a public claim.

• Assessment: Pass. There is no reserved supply or allocation for any specific address or group.

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3. No Hidden Reserves or Special Privileges for Any Address

• What the Code Does: All tokens are initially stored in the contract. The only way to receive tokens is by calling the claim() function, which applies the same conditions to every caller. There is even a helper function (verifyFairDistribution()) that publicly asserts there is no owner, no upgradeability, no special allocations, and that distribution is free.

• Assessment: Pass. There are no hidden controls or privileged functions that allow one address to bypass the public rules.

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4. Distribution Should Be Free, Requiring Only Network Gas Fees

• What the Code Does: The claim() function does not require any payment to receive tokens. Aside from paying for the gas, no additional fee or token purchase is required. (Note: There is a check that the caller’s ETH balance is at least MIN_ETH_REQUIRED (0.01 ether), but this is simply to ensure the caller can cover network fees and is not a fee for claiming.)

• Assessment: Pass. Distribution is free to claim; participants only pay for network gas.

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5. No Post-Deployment Control: Contract Is Immutable Once Deployed

• What the Code Does: The contract does not implement any owner or admin roles and uses immutable logic for token distribution. There are no functions to alter parameters or upgrade the contract after deployment. It also uses standard OpenZeppelin contracts (ERC20 and ReentrancyGuard) to reduce risk.

• Assessment: Pass. Once deployed, no party (including the deployer) can change the behavior or state in a way that violates the fairness principles.

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6. Open-Source and Verifiable by Anyone

• What the Code Does: The contract includes an SPDX license identifier (MIT), imports well-known audited libraries from OpenZeppelin, and its complete source code is provided. Additionally, the inclusion of functions like verifyFairDistribution() helps promote transparency.

• Assessment: Pass. The contract is fully open-source and easily auditable by any third party.

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Additional Observations

• Fair Claiming Process: The claim() function is designed to ensure fairness. It:

  • Tracks unique claimants.

  • Applies timing delays (with adjustable intervals based on participation).

  • Uses on-chain randomness (via block.prevrandao) to mitigate front-running.

  • Caps the amount claimable per address.

• Supply and Unlocking Mechanics: The logic for “chunk unlocking” ties distribution to both the number of claims and unique participants. This mechanism ensures that token supply is unlocked gradually and fairly as more users participate.

• Security Measures: The use of ReentrancyGuard in the claim() function and clear reversion on unexpected calls (via fallback and receive) adds to the overall security of the contract.

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Conclusion

Based on the review, your smart contract adheres to all of the specified Key Token Principles:

• No pre-allocations or special sales: Tokens are only distributed through the public claim mechanism.

• No hidden reserves or privileges: All logic treats every participant equally.

• Free distribution: Users pay only gas fees.

• Immutable post-deployment: There is no owner or upgrade path.

• Open source: The code is MIT-licensed and uses audited libraries.

If your goal is a fair, community-driven token distribution with no hidden advantages or centralized control, this contract meets those criteria.

Feel free to ask if you need any further clarification or additional review details.