{"sources":{"PoeNft.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.20;\n\n/// @title POE — Proof of Epoch (v2)\n/// @notice Commemorative ERC721 issued by the AGCE sale contract: one per\n/// paid launch share, AND one free-edition proof per free claim\n/// (v2 change — v1 free claims received AGCE only, which starved\n/// this contract of discovery traffic: the metadata pointers live\n/// here, so the free path now touches this contract too).\n/// Paid proofs carry a tier set at mint by the holder's cumulative\n/// paid shares: Tier I for 1–4, Tier II for 5–9, Tier III for 10.\n/// Free-edition proofs are tier 0: they never count toward the\n/// paid tiers and are never upgraded by later paid shares.\n/// All editions share one approved artwork template (framed\n/// plate, three epoch rings, centered crown, satellite dot, tier\n/// bars at the bottom) and differ only in accent color and bar\n/// count: neutral grey, no bars (free), silver #8b98a8 (I), teal\n/// #35d0ba (II), gold #e3a82b (III). tokenURI is a fully on-chain\n/// data:application/json;base64 document whose image is an inline\n/// SVG rendered by the contract.\ncontract PoeNft {\n string public constant name = \"Proof of Epoch\";\n string public constant symbol = \"POE\";\n string public constant EXTERNAL_URL = \"https://agce.pages.dev\";\n\n address public owner;\n address public minter;\n uint256 public nextId = 1;\n\n mapping(uint256 => address) internal _owners;\n mapping(uint256 => uint256) public tierOf;\n mapping(address => uint256) public balanceOf;\n mapping(uint256 => address) public getApproved;\n mapping(address => mapping(address => bool)) public isApprovedForAll;\n\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner_, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner_, address indexed operator, bool approved);\n\n constructor() {\n owner = msg.sender;\n }\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"not owner\");\n _;\n }\n\n /// @notice Set the sale contract allowed to mint. One-time setup.\n function setMinter(address minter_) external onlyOwner {\n require(minter_ != address(0), \"zero address\");\n minter = minter_;\n }\n\n /// @notice Tier for a cumulative paid-share count: 1–4 -> I, 5–9 -> II,\n /// 10 -> III. (Proofs are minted from the paid path only.)\n function tierFor(uint256 paidCumulative) public pure returns (uint256) {\n if (paidCumulative >= 10) return 3;\n if (paidCumulative >= 5) return 2;\n return 1;\n }\n\n /// @notice Mint one proof to `to`, tiered by the holder's cumulative\n /// paid shares at this moment (`paidCumulative`).\n function mintTo(address to, uint256 paidCumulative) external returns (uint256 id) {\n require(msg.sender == minter, \"not minter\");\n require(to != address(0), \"zero to\");\n id = nextId++;\n _owners[id] = to;\n tierOf[id] = tierFor(paidCumulative);\n balanceOf[to] += 1;\n emit Transfer(address(0), to, id);\n }\n\n /// @notice Mint one free-edition proof (tier 0) to `to`. Issued by the\n /// sale contract with each free claim; carries no paid tier\n /// and is unaffected by the holder's paid shares, past or\n /// future.\n function mintFreeTo(address to) external returns (uint256 id) {\n require(msg.sender == minter, \"not minter\");\n require(to != address(0), \"zero to\");\n id = nextId++;\n _owners[id] = to;\n tierOf[id] = 0;\n balanceOf[to] += 1;\n emit Transfer(address(0), to, id);\n }\n\n function ownerOf(uint256 id) public view returns (address) {\n address o = _owners[id];\n require(o != address(0), \"nonexistent token\");\n return o;\n }\n\n function approve(address approved, uint256 id) external {\n address o = ownerOf(id);\n require(msg.sender == o || isApprovedForAll[o][msg.sender], \"not authorized\");\n getApproved[id] = approved;\n emit Approval(o, approved, id);\n }\n\n function setApprovalForAll(address operator, bool approved) external {\n isApprovedForAll[msg.sender][operator] = approved;\n emit ApprovalForAll(msg.sender, operator, approved);\n }\n\n function transferFrom(address from, address to, uint256 id) public {\n require(ownerOf(id) == from, \"wrong owner\");\n require(\n msg.sender == from || msg.sender == getApproved[id] || isApprovedForAll[from][msg.sender],\n \"not authorized\"\n );\n require(to != address(0), \"zero to\");\n getApproved[id] = address(0);\n balanceOf[from] -= 1;\n balanceOf[to] += 1;\n _owners[id] = to;\n emit Transfer(from, to, id);\n }\n\n function safeTransferFrom(address from, address to, uint256 id) external {\n safeTransferFrom(from, to, id, \"\");\n }\n\n function safeTransferFrom(address from, address to, uint256 id, bytes memory data) public {\n transferFrom(from, to, id);\n if (to.code.length > 0) {\n require(\n IERC721Receiver(to).onERC721Received(msg.sender, from, id, data) ==\n IERC721Receiver.onERC721Received.selector,\n \"receiver rejected\"\n );\n }\n }\n\n function supportsInterface(bytes4 interfaceId) external pure returns (bool) {\n return interfaceId == 0x01ffc9a7 // ERC165\n || interfaceId == 0x80ac58cd // ERC721\n || interfaceId == 0x5b5e139f; // ERC721Metadata\n }\n\n function tokenURI(uint256 id) public view returns (string memory) {\n require(_owners[id] != address(0), \"nonexistent token\");\n uint256 tier = tierOf[id];\n string memory svg = _svg(tier);\n string memory desc;\n string memory attrs;\n if (tier == 0) {\n desc = \"Proof of Epoch (POE) - free-claim edition of the commemorative proof of the AGCE (AGC Epoch) community launch, issued with each free claim. Neutral grey, no tier bars; paid editions are tiered by the holder cumulative paid shares: I for 1-4, II for 5-9, III for 10. AGC official X: @Agentic_coin.\";\n attrs = '[{\"trait_type\":\"Tier\",\"value\":\"Free\"},{\"trait_type\":\"Source\",\"value\":\"Free Claim\"}]';\n } else {\n desc = \"Proof of Epoch (POE) - commemorative proof issued with each paid share of the AGCE (AGC Epoch) community launch. Tier is set at mint by the holder cumulative paid shares: I for 1-4, II for 5-9, III for 10. AGC official X: @Agentic_coin.\";\n attrs = string(abi.encodePacked('[{\"trait_type\":\"Tier\",\"value\":\"', _roman(tier), '\"}]'));\n }\n string memory json = string(\n abi.encodePacked(\n '{\"name\":\"Proof of Epoch #',\n _toString(id),\n '\",\"description\":\"',\n desc,\n '\",\"image\":\"data:image/svg+xml;base64,',\n _b64(bytes(svg)),\n '\",\"external_url\":\"',\n EXTERNAL_URL,\n '\",\"attributes\":',\n attrs,\n '}'\n )\n );\n return string(abi.encodePacked(\"data:application/json;base64,\", _b64(bytes(json))));\n }\n\n function _roman(uint256 tier) internal pure returns (string memory) {\n if (tier == 3) return \"III\";\n if (tier == 2) return \"II\";\n return \"I\";\n }\n\n /// @dev The approved artwork (icons/poe-tier{1,2,3}.svg + free edition):\n /// one shared template — framed plate, three epoch rings, centered\n /// crown, satellite dot — with the edition accent color (free\n /// edition neutral grey #a3a3a3 with NO tier bars, I silver\n /// #8b98a8, II teal #35d0ba, III gold #e3a82b) and 0/1/2/3 tier bars\n /// at the bottom. The master files' role/aria-label attributes are\n /// dropped here; geometry and colors are unchanged.\n function _svg(uint256 tier) internal pure returns (string memory) {\n string memory c = tier == 3 ? \"#e3a82b\" : tier == 2 ? \"#35d0ba\" : tier == 1 ? \"#8b98a8\" : \"#a3a3a3\";\n string memory bars;\n if (tier == 3) {\n bars = string(\n abi.encodePacked(\n \"\",\n \"\",\n \"\"\n )\n );\n } else if (tier == 2) {\n bars = string(\n abi.encodePacked(\n \"\",\n \"\"\n )\n );\n } else if (tier == 1) {\n bars = string(\n abi.encodePacked(\"\")\n );\n }\n // tier 0 (free edition): bars stays empty — no tier bars.\n return string(\n abi.encodePacked(\n \"\"\n )\n );\n }\n\n function _toString(uint256 v) internal pure returns (string memory) {\n if (v == 0) return \"0\";\n uint256 digits;\n uint256 t = v;\n while (t > 0) { digits++; t /= 10; }\n bytes memory b = new bytes(digits);\n while (v > 0) {\n b[--digits] = bytes1(uint8(48 + (v % 10)));\n v /= 10;\n }\n return string(b);\n }\n\n /// @dev Standard base64 encoding (OpenZeppelin-style assembly implementation).\n function _b64(bytes memory data) internal pure returns (string memory) {\n if (data.length == 0) return \"\";\n string memory table = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n uint256 encodedLen = 4 * ((data.length + 2) / 3);\n string memory result = new string(encodedLen + 32);\n assembly {\n let tablePtr := add(table, 1)\n let resultPtr := add(result, 32)\n for {\n let dataPtr := data\n let endPtr := add(dataPtr, mload(data))\n } lt(dataPtr, endPtr) {} {\n dataPtr := add(dataPtr, 3)\n let input := mload(dataPtr)\n mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n resultPtr := add(resultPtr, 1)\n mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n resultPtr := add(resultPtr, 1)\n mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n resultPtr := add(resultPtr, 1)\n mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n resultPtr := add(resultPtr, 1)\n }\n switch mod(mload(data), 3)\n case 1 {\n mstore8(sub(resultPtr, 1), 0x3d)\n mstore8(sub(resultPtr, 2), 0x3d)\n }\n case 2 {\n mstore8(sub(resultPtr, 1), 0x3d)\n }\n mstore(result, encodedLen)\n }\n return result;\n }\n}\n\ninterface IERC721Receiver {\n function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data)\n external\n returns (bytes4);\n}\n"}},"abi":[{"type":"constructor","inputs":[],"stateMutability":"nonpayable"},{"name":"Approval","type":"event","inputs":[{"name":"owner_","type":"address","indexed":true,"internalType":"address"},{"name":"approved","type":"address","indexed":true,"internalType":"address"},{"name":"tokenId","type":"uint256","indexed":true,"internalType":"uint256"}],"anonymous":false},{"name":"ApprovalForAll","type":"event","inputs":[{"name":"owner_","type":"address","indexed":true,"internalType":"address"},{"name":"operator","type":"address","indexed":true,"internalType":"address"},{"name":"approved","type":"bool","indexed":false,"internalType":"bool"}],"anonymous":false},{"name":"Transfer","type":"event","inputs":[{"name":"from","type":"address","indexed":true,"internalType":"address"},{"name":"to","type":"address","indexed":true,"internalType":"address"},{"name":"tokenId","type":"uint256","indexed":true,"internalType":"uint256"}],"anonymous":false},{"name":"EXTERNAL_URL","type":"function","inputs":[],"outputs":[{"name":"","type":"string","internalType":"string"}],"stateMutability":"view"},{"name":"approve","type":"function","inputs":[{"name":"approved","type":"address","internalType":"address"},{"name":"id","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},{"name":"balanceOf","type":"function","inputs":[{"name":"","type":"address","internalType":"address"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"view"},{"name":"getApproved","type":"function","inputs":[{"name":"","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"address","internalType":"address"}],"stateMutability":"view"},{"name":"isApprovedForAll","type":"function","inputs":[{"name":"","type":"address","internalType":"address"},{"name":"","type":"address","internalType":"address"}],"outputs":[{"name":"","type":"bool","internalType":"bool"}],"stateMutability":"view"},{"name":"mintFreeTo","type":"function","inputs":[{"name":"to","type":"address","internalType":"address"}],"outputs":[{"name":"id","type":"uint256","internalType":"uint256"}],"stateMutability":"nonpayable"},{"name":"mintTo","type":"function","inputs":[{"name":"to","type":"address","internalType":"address"},{"name":"paidCumulative","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"id","type":"uint256","internalType":"uint256"}],"stateMutability":"nonpayable"},{"name":"minter","type":"function","inputs":[],"outputs":[{"name":"","type":"address","internalType":"address"}],"stateMutability":"view"},{"name":"name","type":"function","inputs":[],"outputs":[{"name":"","type":"string","internalType":"string"}],"stateMutability":"view"},{"name":"nextId","type":"function","inputs":[],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"view"},{"name":"owner","type":"function","inputs":[],"outputs":[{"name":"","type":"address","internalType":"address"}],"stateMutability":"view"},{"name":"ownerOf","type":"function","inputs":[{"name":"id","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"address","internalType":"address"}],"stateMutability":"view"},{"name":"safeTransferFrom","type":"function","inputs":[{"name":"from","type":"address","internalType":"address"},{"name":"to","type":"address","internalType":"address"},{"name":"id","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},{"name":"safeTransferFrom","type":"function","inputs":[{"name":"from","type":"address","internalType":"address"},{"name":"to","type":"address","internalType":"address"},{"name":"id","type":"uint256","internalType":"uint256"},{"name":"data","type":"bytes","internalType":"bytes"}],"outputs":[],"stateMutability":"nonpayable"},{"name":"setApprovalForAll","type":"function","inputs":[{"name":"operator","type":"address","internalType":"address"},{"name":"approved","type":"bool","internalType":"bool"}],"outputs":[],"stateMutability":"nonpayable"},{"name":"setMinter","type":"function","inputs":[{"name":"minter_","type":"address","internalType":"address"}],"outputs":[],"stateMutability":"nonpayable"},{"name":"supportsInterface","type":"function","inputs":[{"name":"interfaceId","type":"bytes4","internalType":"bytes4"}],"outputs":[{"name":"","type":"bool","internalType":"bool"}],"stateMutability":"pure"},{"name":"symbol","type":"function","inputs":[],"outputs":[{"name":"","type":"string","internalType":"string"}],"stateMutability":"view"},{"name":"tierFor","type":"function","inputs":[{"name":"paidCumulative","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"pure"},{"name":"tierOf","type":"function","inputs":[{"name":"","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"view"},{"name":"tokenURI","type":"function","inputs":[{"name":"id","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"string","internalType":"string"}],"stateMutability":"view"},{"name":"transferFrom","type":"function","inputs":[{"name":"from","type":"address","internalType":"address"},{"name":"to","type":"address","internalType":"address"},{"name":"id","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"}],"matchId":"58503397","creationMatch":"exact_match","runtimeMatch":"exact_match","verifiedAt":"2026-11-05T13:41:40Z","match":"exact_match","chainId":"56","address":"0xD2001b3EF8Fb923aF515628E717f6AC1BC4a36e1"}