Credo Token

0x4e0603e2a27a30480e5e3a4fe548e29ef12f64be Copy

ERC20

This contract is an ERC20 token.

Name Credo Token

Symbol CREDO

Decimals 18

Total Supply 1,374,729,257 CREDO

About

Stats

Public Functions 8

Event Types 4

Code Size 6,340 bytes

Events (4)

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

CreateCredo Event

Parameters

_to	address
_value	uint256

LogRefund Event

Parameters

_to	address
_value	uint256

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

Constants (7)

name Constant

string

Credo Token

symbol Constant

string

CREDO

decimals Constant

uint256

credosReserveAllocation Constant

uint256

1350 * UNKNOWN VALUE * UNKNOWN VALUE

tokenCreationCap Constant

uint256

1500 * UNKNOWN VALUE * UNKNOWN VALUE

tokenCreationMin Constant

uint256

1355 * UNKNOWN VALUE * UNKNOWN VALUE

credoEthExchangeRate Constant

uint256

100000

State Variables (9)

version Variable

string

etherProceedsAccount Variable

address

credosReserveAccount Variable

address

isFinalized Variable

bool

fundingStartBlock Variable

uint256

fundingEndBlock Variable

uint256

totalSupply Variable

uint256

balances Variable

mapping(address => uint256)

Internal Variable

allowed Variable

mapping(address => mapping(address => uint256))

Internal Variable

Functions Expand All Collapse All

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability constant

Source Code

function balanceOf(address _owner) constant returns (uint256 balance) {
  return balances[_owner];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function transfer(address _to, uint256 _value) returns (bool success) {
  if (balances[msg.sender] >= _value && _value > 0) {
    balances[msg.sender] -= _value;
    balances[_to] += _value;
    Transfer(msg.sender, _to, _value);
    return true;
  } else {
    return false;
  }
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) returns (bool success) {
  if (
    balances[_from] >= _value &&
    allowed[_from][msg.sender] >= _value &&
    _value > 0
  ) {
    balances[_to] += _value;
    balances[_from] -= _value;
    allowed[_from][msg.sender] -= _value;
    Transfer(_from, _to, _value);
    return true;
  } else {
    return false;
  }
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function approve(address _spender, uint256 _value) returns (bool success) {
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability constant

Source Code

function allowance(address _owner, address _spender)
  constant
  returns (uint256 remaining)
{
  return allowed[_owner][_spender];
}

createTokens

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Requirements

isFinalized must not be true

fundingStartBlock must be less than or equal to block.number

fundingEndBlock must be greater than or equal to block.number

msg.value must not be equal to 0

tokenCreationCap must be greater than or equal to checkedSupply

Source Code

function createTokens() external payable {
  if (isFinalized) throw;
  if (block.number < fundingStartBlock) throw;
  if (block.number > fundingEndBlock) throw;
  if (msg.value == 0) throw;

  uint256 tokens = safeMult(msg.value, credoEthExchangeRate);
  uint256 checkedSupply = safeAdd(totalSupply, tokens);

  if (tokenCreationCap < checkedSupply) throw;

  totalSupply = checkedSupply;
  balances[msg.sender] += tokens;
  CreateCredo(msg.sender, tokens);
}

finalize

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

isFinalized must not be true

etherProceedsAccount must be equal to the sender's address

totalSupply must be greater than or equal to tokenCreationMin

One or more of the following: - totalSupply must be equal to tokenCreationCap - OR fundingEndBlock must be less than block.number

the result of calling undefined with this.balance must not be true

Source Code

function finalize() external {
  if (isFinalized) throw;
  if (msg.sender != etherProceedsAccount) throw;
  if (totalSupply < tokenCreationMin) throw;
  if (block.number <= fundingEndBlock && totalSupply != tokenCreationCap) throw;

  isFinalized = true;

  if (!etherProceedsAccount.send(this.balance)) throw;
}

refund

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

isFinalized must not be true

fundingEndBlock must be less than block.number

totalSupply must be less than tokenCreationMin

credosReserveAccount must not be equal to the sender's address

credoVal must not be equal to 0

the result of calling undefined with ethVal must not be true

Source Code

function refund() external {
  if (isFinalized) throw;
  if (block.number <= fundingEndBlock) throw;
  if (totalSupply >= tokenCreationMin) throw;
  if (msg.sender == credosReserveAccount) throw;
  uint256 credoVal = balances[msg.sender];
  if (credoVal == 0) throw;
  balances[msg.sender] = 0;
  totalSupply = safeSubtract(totalSupply, credoVal);
  uint256 ethVal = credoVal / credoEthExchangeRate;
  LogRefund(msg.sender, ethVal);
  if (!msg.sender.send(ethVal)) throw;
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.

internal SafeMath.assert

Parameters

Name	Type
assertion	bool

Properties

Visibility internal

Mutability transaction

Requirements

assertion must not be true

Source Code

function assert(bool assertion) internal {
  if (!assertion) {
    throw;
  }
}

internal SafeMath.safeAdd

Parameters

Name	Type
x	uint256
y	uint256

Properties

Visibility internal

Mutability transaction

Source Code

function safeAdd(uint256 x, uint256 y) internal returns (uint256) {
  uint256 z = x + y;
  assert((z >= x) && (z >= y));
  return z;
}

internal SafeMath.safeSubtract

Parameters

Name	Type
x	uint256
y	uint256

Properties

Visibility internal

Mutability transaction

Requirements

x must be greater than or equal to y

Source Code

function safeSubtract(uint256 x, uint256 y) internal returns (uint256) {
  assert(x >= y);
  uint256 z = x - y;
  return z;
}

internal SafeMath.safeMult

Parameters

Name	Type
x	uint256
y	uint256

Properties

Visibility internal

Mutability transaction

Requirements

One or more of the following:

Source Code

function safeMult(uint256 x, uint256 y) internal returns (uint256) {
  uint256 z = x * y;
  assert((x == 0) || (z / x == y));
  return z;
}

Credo Token

ERC20

About

Stats

Events (4) keyboard_arrow_up

Approval Event

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

CreateCredo Event

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

LogRefund 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.

Constants (7) keyboard_arrow_up

name Constant

symbol Constant

decimals Constant

credosReserveAllocation Constant

tokenCreationCap Constant

tokenCreationMin Constant

credoEthExchangeRate Constant

State Variables (9) keyboard_arrow_up

version Variable

etherProceedsAccount Variable

credosReserveAccount Variable

isFinalized Variable

fundingStartBlock Variable

fundingEndBlock Variable

totalSupply Variable

balances Variable

allowed Variable

Functions Expand All Collapse All

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

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

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

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

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

createTokens 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

finalize 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

refund 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

Internal Functions Expand All Collapse All

internal SafeMath.assert 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

internal SafeMath.safeAdd 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

internal SafeMath.safeSubtract keyboard_arrow_up

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

Properties

Events (4)

Parameters

Parameters

Parameters

Parameters

Constants (7)

State Variables (9)

balanceOf

Parameters

transfer

Parameters

transferFrom

Parameters

approve

Parameters

allowance

Parameters

createTokens

Parameters

Requirements

finalize

Parameters

Requirements

refund

Parameters

Requirements

internal SafeMath.assert

Parameters

Requirements

internal SafeMath.safeAdd

Parameters

internal SafeMath.safeSubtract

Parameters

Requirements

internal SafeMath.safeMult

Parameters

Requirements