TE-FOOD

0xe5f166c0d8872b68790061317bb6cca04582c912 Copy

ERC20

This contract is an ERC20 token.

Name TE-FOOD

Symbol TFD

Decimals 18

Total Supply 567,917,833 TFD

About

TE-FOOD is a blockchain based farm-to-table food traceability solution. Its mission is to provide transparency in the food industry. TE-FOOD aims to enable customers to improve consumer trust and brand exposure, gain deeper supply chain insight to improve their operational efficiency, comply with export regulations, protect their brands against counterfeiting, and perform quicker product recalls. As an end-to-end solution, TE-FOOD offers many components for the complete supply chain to identify tracked items and batches, capture the data, store it on blockchain, process the data, and present it to the consumers. Launched in 2016, TE-FOOD reportedly serves over 6,000 business customers, and performs 400,000 business operations each day. The team claims food products tracked with TE-FOOD are available for more than 150 million consumers around the world. TE-FOOD's blockchain (the FoodChain) is a public permissioned blockchain, which enables both supply chain participants and the consumer community to maintain masternodes to decentralize traceability information. TFD is an ERC20 token and operates on the Ethereum platform which represents a tokenized software licence, enabling users of TE-FOOD's ecosystem to perform their activities. All individuals and organizations need to possess a certain number of TFD licence tokens to use TE-FOOD's ecosystem.

Stats

Public Functions 16

Event Types 4

Code Size 6,997 bytes

Events (4)

Approval Event

Parameters

tokenOwner	address
spender	address
tokens	uint

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Transfer Event

Parameters

from	address
to	address
tokens	uint

VestedTokensReleased Event

Parameters

to	address
amount	uint

Functions Expand All Collapse All

approve

Parameters

Name	Type
_spender	address
_value	uint256
_data	bytes

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to transferrableTime

spender must not be equal to the address for this contract

Source Code

  function approve(address _spender, uint256 _value, bytes _data) public returns (bool) {
    super.approve(_spender, _value);
    require(_spender.call(_data));
    return true;
  }

transfer

Parameters

Name	Type
_to	address
_value	uint256
_data	bytes

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to transferrableTime

to must not be equal to the address for this contract

tokens must be less than or equal to balances for the sender's address

Source Code

  function transfer(address _to, uint256 _value, bytes _data) public returns (bool) {
    super.transfer(_to, _value);
    require(_to.call(_data));
    return true;
  }

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256
_data	bytes

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to transferrableTime

to must not be equal to the address for this contract

tokens must be less than or equal to allowed for from for the sender's address

Source Code

  function transferFrom(address _from, address _to, uint256 _value, bytes _data) public returns (bool) {
    super.transferFrom(_from, _to, _value);
    require(_to.call(_data));
    return true;
  }

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

  function totalSupply() public constant returns (uint) {
    return _circulatingSupply;
  }

balanceOf

Parameters

Name	Type
tokenOwner	address

Properties

Visibility public

Mutability constant

Source Code

  function balanceOf(address tokenOwner) public constant returns (uint balance) {
    return balances[tokenOwner];
  }

allowance

Parameters

Name	Type
tokenOwner	address
spender	address

Properties

Visibility public

Mutability constant

Source Code

  function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
    return allowed[tokenOwner][spender];
  }

transfer

Parameters

Name	Type
to	address
tokens	uint

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to transferrableTime

to must not be equal to the address for this contract

tokens must be less than or equal to balances for the sender's address

Source Code

  function transfer(address to, uint tokens) public returns (bool success) {
    require (now >= transferrableTime);
    require (to != address(this));
    require (balances[msg.sender] >= tokens);
    balances[msg.sender] = balances[msg.sender].sub(tokens);
    balances[to] = balances[to].add(tokens);
    Transfer(msg.sender, to, tokens);
    return true;
  }

approve

Parameters

Name	Type
spender	address
tokens	uint

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to transferrableTime

spender must not be equal to the address for this contract

Source Code

  function approve(address spender, uint tokens) public returns (bool success) {
    require (now >= transferrableTime);
    require (spender != address(this));
    allowed[msg.sender][spender] = tokens;
    Approval(msg.sender, spender, tokens);
    return true;
  }

transferFrom

Parameters

Name	Type
from	address
to	address
tokens	uint

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to transferrableTime

to must not be equal to the address for this contract

tokens must be less than or equal to allowed for from for the sender's address

Source Code

  function transferFrom(address from, address to, uint tokens) public returns (bool success) {
    require (now >= transferrableTime);
    require (to != address(this));
    require (allowed[from][msg.sender] >= tokens);
    balances[from] = balances[from].sub(tokens);
    allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
    balances[to] = balances[to].add(tokens);
    Transfer(from, to, tokens);
    return true;
  }

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

newOwner must not be equal to 0x0000000000000000000000000000000000000000

Source Code

  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

allocateTokens

Parameters

Name	Type
addr	address
amount	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

addr must not be equal to 0x00

amount must be greater than 0

_totalSupply must be equal to UNKNOWN VALUE

Source Code

  function allocateTokens (address addr, uint amount) public onlyOwner returns (bool) {
    require (addr != 0x00);
    require (amount > 0);
    balances[0x00] = balances[0x00].sub(amount);
    balances[addr] = balances[addr].add(amount);
    _circulatingSupply = _circulatingSupply.add(amount);
    assert (_vestedSupply.add(_circulatingSupply).add(balances[0x00]) == _totalSupply);
    Transfer(0x00, addr, amount);
    return true;
  }

allocateVestedTokens

Parameters

Name	Type
addr	address
amount	uint
vestingPeriod	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

addr must not be equal to 0x00

amount must be greater than 0

vestingPeriod must be greater than 0

_totalSupply must be equal to UNKNOWN VALUE

Source Code

  function allocateVestedTokens (address addr, uint amount, uint vestingPeriod) public onlyOwner returns (bool) {
    require (addr != 0x00);
    require (amount > 0);
    require (vestingPeriod > 0);
    balances[0x00] = balances[0x00].sub(amount);
    vestingMap[vestingPeriod].push( vestedBalance (addr,amount) );
    _vestedSupply = _vestedSupply.add(amount);
    assert (_vestedSupply.add(_circulatingSupply).add(balances[0x00]) == _totalSupply);
    return true;
  }

releaseVestedTokens

Parameters

Name	Type
vestingPeriod	uint

Properties

Visibility public

Mutability transaction

Requirements

now must be greater than or equal to UNKNOWN VALUE

the number of values in undefined must be greater than 0

undefined.balance must be greater than 0

Source Code

  function releaseVestedTokens (uint vestingPeriod) public {
    require (now >= transferrableTime.add(vestingPeriod));
    require (vestingMap[vestingPeriod].length > 0);
    require (vestingMap[vestingPeriod][0].balance > 0);
    var v = vestingMap[vestingPeriod];
    for (uint8 i = 0; i < v.length; i++) {
      balances[v[i].addr] = balances[v[i].addr].add(v[i].balance);
      _circulatingSupply = _circulatingSupply.add(v[i].balance);
      _vestedSupply = _vestedSupply.sub(v[i].balance);
      VestedTokensReleased(v[i].addr, v[i].balance);
      Transfer(0x00, v[i].addr, v[i].balance);
      v[i].balance = 0;
    }
  }

enableTransfers

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

  function enableTransfers () public onlyOwner returns (bool) {
    transferrableTime = now.add(86400);
    owner = 0x00;
    return true;
  }

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Source Code

  function () public payable {
    revert();
  }

vestedBalanceOf

Parameters

Name	Type
tokenOwner	address
vestingPeriod	uint

Properties

Visibility public

Mutability constant

Source Code

  function vestedBalanceOf(address tokenOwner, uint vestingPeriod) public constant returns (uint balance) {
    var v = vestingMap[vestingPeriod];
    for (uint8 i = 0; i < v.length; i++) {
      if (v[i].addr == tokenOwner) return v[i].balance;
    }
    return 0;
  }

TE-FOOD

ERC20

About link description

Stats

Events (4) keyboard_arrow_up

Approval Event

Parameters help Event parameters list the data that an event contains.

OwnershipTransferred Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

VestedTokensReleased Event

Parameters help Event parameters list the data that an event contains.

Functions Expand All Collapse All

approve keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

transfer keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

transferFrom keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

totalSupply keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

balanceOf keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

allowance keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

transfer keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

approve keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

transferFrom keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

transferOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

allocateTokens keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

allocateVestedTokens keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

releaseVestedTokens keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

About

Events (4)

Parameters

Parameters

Parameters

Parameters

approve

Parameters

Requirements

transfer

Parameters

Requirements

transferFrom

Parameters

Requirements

totalSupply

Parameters

balanceOf

Parameters

allowance

Parameters

transfer

Parameters

Requirements

approve

Parameters

Requirements

transferFrom

Parameters

Requirements

transferOwnership

Parameters

Modifiers

Requirements

allocateTokens

Parameters

Modifiers

Requirements

allocateVestedTokens

Parameters

Modifiers

Requirements

releaseVestedTokens

Parameters

Requirements

enableTransfers

Parameters

Modifiers

constructor

Parameters

vestedBalanceOf

Parameters