Contract

Sample ProfessionalToken source, plus verification for the loaded address.

No token loaded. Load one on the dashboard to check Etherscan verification. The sample source is still available below.

1// SPDX-License-Identifier: MIT
2pragma solidity ^0.8.20;
3
4contract ProfessionalToken {
5    string public name;
6    string public symbol;
7    uint8 public decimals;
8    uint256 public totalSupply;
9    mapping(address => uint256) public balanceOf;
10    mapping(address => mapping(address => uint256)) public allowance;
11    mapping(address => bool) public blacklist;
12    bool public paused;
13    address public owner;
14
15    event Transfer(address indexed from, address indexed to, uint256 value);
16    event Approval(address indexed owner, address indexed spender, uint256 value);
17    event Mint(address indexed to, uint256 amount);
18    event Burn(address indexed from, uint256 amount);
19    event Pause(bool indexed state);
20    event BlacklistUpdate(address indexed account, bool indexed status);
21    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
22
23    modifier onlyOwner() {
24        require(msg.sender == owner, "Not authorized: Owner only");
25        _;
26    }
27
28    modifier whenNotPaused() {
29        require(!paused, "Contract is paused");
30        _;
31    }
32
33    modifier notBlacklisted(address _account) {
34        require(!blacklist[_account], "Address is blacklisted");
35        _;
36    }
37
38    constructor(
39        string memory _name,
40        string memory _symbol,
41        uint8 _decimals,
42        uint256 _initialSupply,
43        address _initialOwner
44    ) {
45        name = _name;
46        symbol = _symbol;
47        decimals = _decimals;
48        owner = _initialOwner;
49
50        uint256 initialSupply = _initialSupply * 10 ** uint256(decimals);
51        totalSupply = initialSupply;
52        balanceOf[_initialOwner] = initialSupply;
53
54        emit Transfer(address(0), _initialOwner, initialSupply);
55        emit OwnershipTransferred(address(0), _initialOwner);
56    }
57
58    function transfer(address to, uint256 value)
59        external
60        whenNotPaused
61        notBlacklisted(msg.sender)
62        notBlacklisted(to)
63        returns (bool success)
64    {
65        require(to != address(0), "Cannot send to zero address");
66        require(balanceOf[msg.sender] >= value, "Insufficient balance");
67
68        balanceOf[msg.sender] -= value;
69        balanceOf[to] += value;
70
71        emit Transfer(msg.sender, to, value);
72        return true;
73    }
74
75    function transferFrom(
76        address from,
77        address to,
78        uint256 value
79    )
80        external
81        whenNotPaused
82        notBlacklisted(from)
83        notBlacklisted(to)
84        returns (bool success)
85    {
86        require(to != address(0), "Cannot send to zero address");
87        require(balanceOf[from] >= value, "Insufficient balance");
88        require(allowance[from][msg.sender] >= value, "Allowance exceeded");
89
90        allowance[from][msg.sender] -= value;
91        balanceOf[from] -= value;
92        balanceOf[to] += value;
93
94        emit Transfer(from, to, value);
95        return true;
96    }
97
98    function approve(address spender, uint256 value)
99        external
100        whenNotPaused
101        notBlacklisted(msg.sender)
102        returns (bool success)
103    {
104        require(spender != address(0), "Cannot approve zero address");
105
106        allowance[msg.sender][spender] = value;
107        emit Approval(msg.sender, spender, value);
108        return true;
109    }
110
111    function mint(address to, uint256 amount)
112        external
113        onlyOwner
114        whenNotPaused
115        notBlacklisted(to)
116    {
117        require(to != address(0), "Cannot mint to zero address");
118        require(amount > 0, "Amount must be greater than 0");
119
120        totalSupply += amount;
121        balanceOf[to] += amount;
122
123        emit Mint(to, amount);
124        emit Transfer(address(0), to, amount);
125    }
126
127    function burn(uint256 amount)
128        external
129        whenNotPaused
130        notBlacklisted(msg.sender)
131    {
132        require(amount > 0, "Amount must be greater than 0");
133        require(balanceOf[msg.sender] >= amount, "Insufficient balance");
134
135        balanceOf[msg.sender] -= amount;
136        totalSupply -= amount;
137
138        emit Burn(msg.sender, amount);
139        emit Transfer(msg.sender, address(0), amount);
140    }
141
142    function burnFrom(address from, uint256 amount)
143        external
144        whenNotPaused
145        notBlacklisted(from)
146    {
147        require(amount > 0, "Amount must be greater than 0");
148        require(balanceOf[from] >= amount, "Insufficient balance");
149        require(allowance[from][msg.sender] >= amount, "Allowance exceeded");
150
151        allowance[from][msg.sender] -= amount;
152        balanceOf[from] -= amount;
153        totalSupply -= amount;
154
155        emit Burn(from, amount);
156        emit Transfer(from, address(0), amount);
157    }
158
159    function pause() external onlyOwner {
160        require(!paused, "Already paused");
161        paused = true;
162        emit Pause(true);
163    }
164
165    function unpause() external onlyOwner {
166        require(paused, "Not paused");
167        paused = false;
168        emit Pause(false);
169    }
170
171    function setBlacklist(address account, bool status) external onlyOwner {
172        require(account != address(0), "Cannot blacklist zero address");
173        require(account != owner, "Cannot blacklist owner");
174
175        blacklist[account] = status;
176        emit BlacklistUpdate(account, status);
177    }
178
179    function transferOwnership(address newOwner) external onlyOwner {
180        require(newOwner != address(0), "New owner cannot be zero address");
181        require(newOwner != owner, "Already the owner");
182
183        address previousOwner = owner;
184        owner = newOwner;
185        emit OwnershipTransferred(previousOwner, newOwner);
186    }
187}
188

Actions

Copy, download, or open the sample ProfessionalToken in Remix.

Load a token on the dashboard to check verification status.

Contract ABI

Fallback ABI for ProfessionalToken (ERC-20 plus owner controls).

[
  {
    "type": "event",
    "name": "Approval",
    "inputs": [
      {
        "indexed": true,
        "name": "owner",
        "type": "address"
      },
      {
        "indexed": true,
        "name": "spender",
        "type": "address"
      },
      {
        "indexed": false,
        "name": "value",
        "type": "uint256"
      }
    ]
  },
  {
    "type": "event",
    "name": "Transfer",
    "inputs": [
      {
        "indexed": true,
        "name": "from",
        "type": "address"
      },
      {
        "indexed": true,
        "name": "to",
        "type": "address"
      },
      {
        "indexed": false,
        "name": "value",
        "type": "uint256"
      }
    ]
  },
  {
    "type": "function",
    "name": "allowance",
    "stateMutability": "view",
    "inputs": [
      {
        "name": "owner",
        "type": "address"
      },
      {
        "name": "spender",
        "type": "address"
      }
    ],
    "outputs": [
      {
        "type": "uint256"
      }
    ]
  },
  {
    "type": "function",
    "name": "approve",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "spender",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": [
      {
        "type": "bool"
      }
    ]
  },
  {
    "type": "function",
    "name": "balanceOf",
    "stateMutability": "view",
    "inputs": [
      {
        "name": "account",
        "type": "address"
      }
    ],
    "outputs": [
      {
        "type": "uint256"
      }
    ]
  },
  {
    "type": "function",
    "name": "decimals",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "type": "uint8"
      }
    ]
  },
  {
    "type": "function",
    "name": "name",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "type": "string"
      }
    ]
  },
  {
    "type": "function",
    "name": "symbol",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "type": "string"
      }
    ]
  },
  {
    "type": "function",
    "name": "totalSupply",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "type": "uint256"
      }
    ]
  },
  {
    "type": "function",
    "name": "transfer",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "recipient",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": [
      {
        "type": "bool"
      }
    ]
  },
  {
    "type": "function",
    "name": "transferFrom",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "sender",
        "type": "address"
      },
      {
        "name": "recipient",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": [
      {
        "type": "bool"
      }
    ]
  },
  {
    "type": "function",
    "name": "owner",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ]
  },
  {
    "type": "function",
    "name": "paused",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "name": "",
        "type": "bool"
      }
    ]
  },
  {
    "type": "function",
    "name": "blacklist",
    "stateMutability": "view",
    "inputs": [
      {
        "name": "account",
        "type": "address"
      }
    ],
    "outputs": [
      {
        "name": "",
        "type": "bool"
      }
    ]
  },
  {
    "type": "function",
    "name": "mint",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "to",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": []
  },
  {
    "type": "function",
    "name": "burn",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": []
  },
  {
    "type": "function",
    "name": "burnFrom",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "from",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": []
  },
  {
    "type": "function",
    "name": "pause",
    "stateMutability": "nonpayable",
    "inputs": [],
    "outputs": []
  },
  {
    "type": "function",
    "name": "unpause",
    "stateMutability": "nonpayable",
    "inputs": [],
    "outputs": []
  },
  {
    "type": "function",
    "name": "setBlacklist",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "account",
        "type": "address"
      },
      {
        "name": "status",
        "type": "bool"
      }
    ],
    "outputs": []
  },
  {
    "type": "function",
    "name": "transferOwnership",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "newOwner",
        "type": "address"
      }
    ],
    "outputs": []
  },
  {
    "type": "event",
    "name": "Mint",
    "inputs": [
      {
        "name": "to",
        "type": "address",
        "indexed": true
      },
      {
        "name": "amount",
        "type": "uint256",
        "indexed": false
      }
    ]
  },
  {
    "type": "event",
    "name": "Burn",
    "inputs": [
      {
        "name": "from",
        "type": "address",
        "indexed": true
      },
      {
        "name": "amount",
        "type": "uint256",
        "indexed": false
      }
    ]
  },
  {
    "type": "event",
    "name": "Pause",
    "inputs": [
      {
        "name": "state",
        "type": "bool",
        "indexed": true
      }
    ]
  },
  {
    "type": "event",
    "name": "BlacklistUpdate",
    "inputs": [
      {
        "name": "account",
        "type": "address",
        "indexed": true
      },
      {
        "name": "status",
        "type": "bool",
        "indexed": true
      }
    ]
  }
]

1// SPDX-License-Identifier: MIT 2pragma solidity ^0.8.20; 3 4contract ProfessionalToken { 5 string public name; 6 string public symbol; 7 uint8 public decimals; 8 uint256 public totalSupply; 9 mapping(address => uint256) public balanceOf; 10 mapping(address => mapping(address => uint256)) public allowance; 11 mapping(address => bool) public blacklist; 12 bool public paused; 13 address public owner; 14 15 event Transfer(address indexed from, address indexed to, uint256 value); 16 event Approval(address indexed owner, address indexed spender, uint256 value); 17 event Mint(address indexed to, uint256 amount); 18 event Burn(address indexed from, uint256 amount); 19 event Pause(bool indexed state); 20 event BlacklistUpdate(address indexed account, bool indexed status); 21 event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); 22 23 modifier onlyOwner() { 24 require(msg.sender == owner, "Not authorized: Owner only"); 25 _; 26 } 27 28 modifier whenNotPaused() { 29 require(!paused, "Contract is paused"); 30 _; 31 } 32 33 modifier notBlacklisted(address _account) { 34 require(!blacklist[_account], "Address is blacklisted"); 35 _; 36 } 37 38 constructor( 39 string memory _name, 40 string memory _symbol, 41 uint8 _decimals, 42 uint256 _initialSupply, 43 address _initialOwner 44 ) { 45 name = _name; 46 symbol = _symbol; 47 decimals = _decimals; 48 owner = _initialOwner; 49 50 uint256 initialSupply = _initialSupply * 10 ** uint256(decimals); 51 totalSupply = initialSupply; 52 balanceOf[_initialOwner] = initialSupply; 53 54 emit Transfer(address(0), _initialOwner, initialSupply); 55 emit OwnershipTransferred(address(0), _initialOwner); 56 } 57 58 function transfer(address to, uint256 value) 59 external 60 whenNotPaused 61 notBlacklisted(msg.sender) 62 notBlacklisted(to) 63 returns (bool success) 64 { 65 require(to != address(0), "Cannot send to zero address"); 66 require(balanceOf[msg.sender] >= value, "Insufficient balance"); 67 68 balanceOf[msg.sender] -= value; 69 balanceOf[to] += value; 70 71 emit Transfer(msg.sender, to, value); 72 return true; 73 } 74 75 function transferFrom( 76 address from, 77 address to, 78 uint256 value 79 ) 80 external 81 whenNotPaused 82 notBlacklisted(from) 83 notBlacklisted(to) 84 returns (bool success) 85 { 86 require(to != address(0), "Cannot send to zero address"); 87 require(balanceOf[from] >= value, "Insufficient balance"); 88 require(allowance[from][msg.sender] >= value, "Allowance exceeded"); 89 90 allowance[from][msg.sender] -= value; 91 balanceOf[from] -= value; 92 balanceOf[to] += value; 93 94 emit Transfer(from, to, value); 95 return true; 96 } 97 98 function approve(address spender, uint256 value) 99 external 100 whenNotPaused 101 notBlacklisted(msg.sender) 102 returns (bool success) 103 { 104 require(spender != address(0), "Cannot approve zero address"); 105 106 allowance[msg.sender][spender] = value; 107 emit Approval(msg.sender, spender, value); 108 return true; 109 } 110 111 function mint(address to, uint256 amount) 112 external 113 onlyOwner 114 whenNotPaused 115 notBlacklisted(to) 116 { 117 require(to != address(0), "Cannot mint to zero address"); 118 require(amount > 0, "Amount must be greater than 0"); 119 120 totalSupply += amount; 121 balanceOf[to] += amount; 122 123 emit Mint(to, amount); 124 emit Transfer(address(0), to, amount); 125 } 126 127 function burn(uint256 amount) 128 external 129 whenNotPaused 130 notBlacklisted(msg.sender) 131 { 132 require(amount > 0, "Amount must be greater than 0"); 133 require(balanceOf[msg.sender] >= amount, "Insufficient balance"); 134 135 balanceOf[msg.sender] -= amount; 136 totalSupply -= amount; 137 138 emit Burn(msg.sender, amount); 139 emit Transfer(msg.sender, address(0), amount); 140 } 141 142 function burnFrom(address from, uint256 amount) 143 external 144 whenNotPaused 145 notBlacklisted(from) 146 { 147 require(amount > 0, "Amount must be greater than 0"); 148 require(balanceOf[from] >= amount, "Insufficient balance"); 149 require(allowance[from][msg.sender] >= amount, "Allowance exceeded"); 150 151 allowance[from][msg.sender] -= amount; 152 balanceOf[from] -= amount; 153 totalSupply -= amount; 154 155 emit Burn(from, amount); 156 emit Transfer(from, address(0), amount); 157 } 158 159 function pause() external onlyOwner { 160 require(!paused, "Already paused"); 161 paused = true; 162 emit Pause(true); 163 } 164 165 function unpause() external onlyOwner { 166 require(paused, "Not paused"); 167 paused = false; 168 emit Pause(false); 169 } 170 171 function setBlacklist(address account, bool status) external onlyOwner { 172 require(account != address(0), "Cannot blacklist zero address"); 173 require(account != owner, "Cannot blacklist owner"); 174 175 blacklist[account] = status; 176 emit BlacklistUpdate(account, status); 177 } 178 179 function transferOwnership(address newOwner) external onlyOwner { 180 require(newOwner != address(0), "New owner cannot be zero address"); 181 require(newOwner != owner, "Already the owner"); 182 183 address previousOwner = owner; 184 owner = newOwner; 185 emit OwnershipTransferred(previousOwner, newOwner); 186 } 187} 188

[ { "type": "event", "name": "Approval", "inputs": [ { "indexed": true, "name": "owner", "type": "address" }, { "indexed": true, "name": "spender", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ] }, { "type": "event", "name": "Transfer", "inputs": [ { "indexed": true, "name": "from", "type": "address" }, { "indexed": true, "name": "to", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ] }, { "type": "function", "name": "allowance", "stateMutability": "view", "inputs": [ { "name": "owner", "type": "address" }, { "name": "spender", "type": "address" } ], "outputs": [ { "type": "uint256" } ] }, { "type": "function", "name": "approve", "stateMutability": "nonpayable", "inputs": [ { "name": "spender", "type": "address" }, { "name": "amount", "type": "uint256" } ], "outputs": [ { "type": "bool" } ] }, { "type": "function", "name": "balanceOf", "stateMutability": "view", "inputs": [ { "name": "account", "type": "address" } ], "outputs": [ { "type": "uint256" } ] }, { "type": "function", "name": "decimals", "stateMutability": "view", "inputs": [], "outputs": [ { "type": "uint8" } ] }, { "type": "function", "name": "name", "stateMutability": "view", "inputs": [], "outputs": [ { "type": "string" } ] }, { "type": "function", "name": "symbol", "stateMutability": "view", "inputs": [], "outputs": [ { "type": "string" } ] }, { "type": "function", "name": "totalSupply", "stateMutability": "view", "inputs": [], "outputs": [ { "type": "uint256" } ] }, { "type": "function", "name": "transfer", "stateMutability": "nonpayable", "inputs": [ { "name": "recipient", "type": "address" }, { "name": "amount", "type": "uint256" } ], "outputs": [ { "type": "bool" } ] }, { "type": "function", "name": "transferFrom", "stateMutability": "nonpayable", "inputs": [ { "name": "sender", "type": "address" }, { "name": "recipient", "type": "address" }, { "name": "amount", "type": "uint256" } ], "outputs": [ { "type": "bool" } ] }, { "type": "function", "name": "owner", "stateMutability": "view", "inputs": [], "outputs": [ { "name": "", "type": "address" } ] }, { "type": "function", "name": "paused", "stateMutability": "view", "inputs": [], "outputs": [ { "name": "", "type": "bool" } ] }, { "type": "function", "name": "blacklist", "stateMutability": "view", "inputs": [ { "name": "account", "type": "address" } ], "outputs": [ { "name": "", "type": "bool" } ] }, { "type": "function", "name": "mint", "stateMutability": "nonpayable", "inputs": [ { "name": "to", "type": "address" }, { "name": "amount", "type": "uint256" } ], "outputs": [] }, { "type": "function", "name": "burn", "stateMutability": "nonpayable", "inputs": [ { "name": "amount", "type": "uint256" } ], "outputs": [] }, { "type": "function", "name": "burnFrom", "stateMutability": "nonpayable", "inputs": [ { "name": "from", "type": "address" }, { "name": "amount", "type": "uint256" } ], "outputs": [] }, { "type": "function", "name": "pause", "stateMutability": "nonpayable", "inputs": [], "outputs": [] }, { "type": "function", "name": "unpause", "stateMutability": "nonpayable", "inputs": [], "outputs": [] }, { "type": "function", "name": "setBlacklist", "stateMutability": "nonpayable", "inputs": [ { "name": "account", "type": "address" }, { "name": "status", "type": "bool" } ], "outputs": [] }, { "type": "function", "name": "transferOwnership", "stateMutability": "nonpayable", "inputs": [ { "name": "newOwner", "type": "address" } ], "outputs": [] }, { "type": "event", "name": "Mint", "inputs": [ { "name": "to", "type": "address", "indexed": true }, { "name": "amount", "type": "uint256", "indexed": false } ] }, { "type": "event", "name": "Burn", "inputs": [ { "name": "from", "type": "address", "indexed": true }, { "name": "amount", "type": "uint256", "indexed": false } ] }, { "type": "event", "name": "Pause", "inputs": [ { "name": "state", "type": "bool", "indexed": true } ] }, { "type": "event", "name": "BlacklistUpdate", "inputs": [ { "name": "account", "type": "address", "indexed": true }, { "name": "status", "type": "bool", "indexed": true } ] } ]