ERC-5679: Mint and Burn Tokens

ERCs
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That’s very good question and concern. And I think I am confident to also give you a good answer:

There is multiple ways to do permission. Centralized admin-role based permission is only one way.

here are other ways

  1. Allowing auto-sale via native ETHs or exchange of other ERC721 / ERC20
contract SomeNFT {
const uint256 CHARGE = ...;
fallback() {
  require(msg.value > CHARGE);
  mint(nextId, ...);
  // increase nextId etc;
}
}

In this contract above, anyone who send a native ETH of that evm chain above the CHARGE will be minted one NFT, no admin permission is involved.

1b. Variant of 1, auto-sale via receiving ERC20*/ERC721/ERC1155. assuming the name of token is called “GoldToken”

contract SomeNFT is ERC1155TokenReceiver {

function OnERC1155TokenReceived(
address operator, address from, address to, uint256 tokenId, uint256 amount, bytes calldata data) {
require(operator == intendedAddressOfGoldToken);
require(amount >= CHARGE);
mint(…);
}
}

  1. Authorized Minting via a Smart Proposal(EIP-5247) 
struct Proposal {
  uint256 id;
  address contract;
  bytes memory txForMint;
}

contract SomeDAO {
  function execute(Proposal proposal) public onlyPassed  {
    require(_isProposalPassedAndLocked(proposal.id));
    address erc721 = proposal.contract;
    erc721.call(txForMint);
  }
}

In this contract, a DAO can agree to mint one or many tokens but based on a Smart Proposal which can be voted upon.

  1. Allow a mint but endorsed by Admin via Smart Endorsement(EIP-5453) 
contract SomeNFT {
  function mint(...) public onlyEndorsedByAdmin() {
    ...
  }
}

In this contract, an admin can sign an offchain endorsement message but the claimer will actually create the transaction TX.

  1. Mint NFT via auctions
contract SomeNFT {
  function commit() {
    ...
  }
  function bid(tokenId) { }
  
  function mint(...) public onlyWonAuction() {
    ...
  }
  modifier onlyWonAuction {
    // Code logic for msg.sender has valid committed bid price
    // Code logic for msg.sender has bid highest price within the a deadline
  }
}
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