Simple Token

0x2c4e8f2d746113d0696ce89b35f0d8bf88e0aeca Copy

ERC20

This contract is an ERC20 token.

Name Simple Token

Symbol ST

Decimals 18

Total Supply 800,000,000 ST

About

OST (OST) is a cryptocurrency and operates on the Ethereum platform. OST has a current supply of 800,000,000 with 763,665,268.9074074 in circulation. The last known price of OST is 0.00990065 USD and is up 151.87 over the last 24 hours. It is currently trading on 7 active market(s) with $1,373,323.02 traded over the last 24 hours. More information can be found at https://ost.com.

Stats

Public Functions 15

Event Types 8

Code Size 11,806 bytes

Events (8)

AdminAddressChanged Event

Parameters

_newAddress

address

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

Burnt Event

Parameters

_from	address
_amount	uint256

Finalized Event

Parameters

OpsAddressChanged Event

Parameters

_newAddress

address

OwnershipTransferCompleted Event

Parameters

_newOwner

address

OwnershipTransferInitiated Event

Parameters

_proposedOwner

address

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

Constants (5)

TOKEN_SYMBOL Constant

string

TOKEN_NAME Constant

string

Simple Token

TOKEN_DECIMALS Constant

uint8

DECIMALSFACTOR Constant

uint256

UNKNOWN VALUE

TOKENS_MAX Constant

uint256

800000000 * DECIMALSFACTOR

State Variables (11)

finalized Variable

bool

owner Variable

address

proposedOwner Variable

address

opsAddress Variable

address

adminAddress Variable

address

tokenName Variable

string

Internal Variable

tokenSymbol Variable

string

Internal Variable

tokenDecimals Variable

uint8

Internal Variable

tokenTotalSupply Variable

uint256

Internal Variable

balances Variable

mapping(address => uint256)

Internal Variable

allowed Variable

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

Internal Variable

Functions Expand All Collapse All

initiateOwnershipTransfer

Parameters

Name	Type
_proposedOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function initiateOwnershipTransfer(address _proposedOwner)
  public
  onlyOwner
  returns (bool)
{
  proposedOwner = _proposedOwner;

  OwnershipTransferInitiated(_proposedOwner);

  return true;
}

completeOwnershipTransfer

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

proposedOwner must be equal to the sender's address

Source Code

function completeOwnershipTransfer() public returns (bool) {
  require(msg.sender == proposedOwner);

  owner = proposedOwner;
  proposedOwner = address(0);

  OwnershipTransferCompleted(owner);

  return true;
}

setAdminAddress

Parameters

Name	Type
_adminAddress	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwnerOrAdmin checks for the following:

One or more of the following: -null - ORnull

Requirements

_adminAddress must not be equal to owner

_adminAddress must not be equal to UNKNOWN VALUE

the result of calling isOps with _adminAddress must not be true

Source Code

function setAdminAddress(address _adminAddress)
  external
  onlyOwnerOrAdmin
  returns (bool)
{
  require(_adminAddress != owner);
  require(_adminAddress != address(this));
  require(!isOps(_adminAddress));

  adminAddress = _adminAddress;

  AdminAddressChanged(_adminAddress);

  return true;
}

setOpsAddress

Parameters

Name	Type
_opsAddress	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwnerOrAdmin checks for the following:

One or more of the following: -null - ORnull

Requirements

_opsAddress must not be equal to owner

_opsAddress must not be equal to UNKNOWN VALUE

the result of calling isAdmin with _opsAddress must not be true

Source Code

function setOpsAddress(address _opsAddress)
  external
  onlyOwnerOrAdmin
  returns (bool)
{
  require(_opsAddress != owner);
  require(_opsAddress != address(this));
  require(!isAdmin(_opsAddress));

  opsAddress = _opsAddress;

  OpsAddressChanged(_opsAddress);

  return true;
}

name

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function name() public view returns (string) {
  return tokenName;
}

symbol

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function symbol() public view returns (string) {
  return tokenSymbol;
}

decimals

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function decimals() public view returns (uint8) {
  return tokenDecimals;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return tokenTotalSupply;
}

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address _owner) public view returns (uint256) {
  return balances[_owner];
}

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability view

Source Code

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

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - _to must be equal to owner - ORnull

Source Code

function transfer(address _to, uint256 _value) public returns (bool success) {
  checkTransferAllowed(msg.sender, _to);

  return super.transfer(_to, _value);
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - _to must be equal to owner - ORnull

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool success) {
  checkTransferAllowed(msg.sender, _to);

  return super.transferFrom(_from, _to, _value);
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

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

  Approval(msg.sender, _spender, _value);

  return true;
}

burn

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

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

Source Code

function burn(uint256 _value) public returns (bool success) {
  require(_value <= balances[msg.sender]);

  balances[msg.sender] = balances[msg.sender].sub(_value);
  tokenTotalSupply = tokenTotalSupply.sub(_value);

  Burnt(msg.sender, _value);

  return true;
}

finalize

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyAdmin checks for the following:

null

Requirements

finalized must not be true

Source Code

function finalize() external onlyAdmin returns (bool success) {
  require(!finalized);

  finalized = true;

  Finalized();

  return true;
}

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 SimpleToken.checkTransferAllowed

Parameters

Name	Type
_sender	address
_to	address

Properties

Visibility private

Mutability view

Requirements

One or more of the following: - _to must be equal to owner - ORnull

Source Code

function checkTransferAllowed(address _sender, address _to) private view {
  if (finalized) {
    // Everybody should be ok to transfer once the token is finalized.
    return;
  }

  // Owner and Ops are allowed to transfer tokens before the sale is finalized.
  // This allows the tokens to move from the TokenSale contract to a beneficiary.
  // We also allow someone to send tokens back to the owner. This is useful among other
  // cases, for the Trustee to transfer unlocked tokens back to the owner (reclaimTokens).
  require(isOwnerOrOps(_sender) || _to == owner);
}

internal Owned.isOwner

Parameters

Name	Type
_address	address

Properties

Visibility internal

Mutability view

Source Code

function isOwner(address _address) internal view returns (bool) {
  return (_address == owner);
}

internal OpsManaged.isAdmin

Parameters

Name	Type
_address	address

Properties

Visibility internal

Mutability view

Source Code

function isAdmin(address _address) internal view returns (bool) {
  return (adminAddress != address(0) && _address == adminAddress);
}

internal OpsManaged.isOps

Parameters

Name	Type
_address	address

Properties

Visibility internal

Mutability view

Source Code

function isOps(address _address) internal view returns (bool) {
  return (opsAddress != address(0) && _address == opsAddress);
}

internal OpsManaged.isOwnerOrOps

Parameters

Name	Type
_address	address

Properties

Visibility internal

Mutability view

Source Code

function isOwnerOrOps(address _address) internal view returns (bool) {
  return (isOwner(_address) || isOps(_address));
}

internal Owned.isOwner

Parameters

Name	Type
_address	address

Properties

Visibility internal

Mutability view

Source Code

function isOwner(address _address) internal view returns (bool) {
  return (_address == owner);
}

Simple Token

ERC20

About link

Stats

Events (8) keyboard_arrow_up

AdminAddressChanged Event

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

Approval Event

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

Burnt Event

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

Finalized Event

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

OpsAddressChanged Event

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

OwnershipTransferCompleted Event

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

OwnershipTransferInitiated 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 (5) keyboard_arrow_up

TOKEN_SYMBOL Constant

TOKEN_NAME Constant

TOKEN_DECIMALS Constant

DECIMALSFACTOR Constant

TOKENS_MAX Constant

State Variables (11) keyboard_arrow_up

finalized Variable

owner Variable

proposedOwner Variable

opsAddress Variable

adminAddress Variable

tokenName Variable

tokenSymbol Variable

tokenDecimals Variable

tokenTotalSupply Variable

balances Variable

allowed Variable

Functions Expand All Collapse All

initiateOwnershipTransfer 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:

Source Code

completeOwnershipTransfer 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

setAdminAddress 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.

onlyOwnerOrAdmin 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

setOpsAddress 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.

onlyOwnerOrAdmin 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

name 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

symbol 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

decimals 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

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

About

Events (8)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (5)

State Variables (11)

initiateOwnershipTransfer

Parameters

Modifiers

completeOwnershipTransfer

Parameters

Requirements

setAdminAddress

Parameters

Modifiers

Requirements

setOpsAddress

Parameters

Modifiers

Requirements

name

Parameters

symbol

Parameters

decimals

Parameters

totalSupply

Parameters

balanceOf

Parameters

allowance

Parameters

transfer

Parameters

Requirements

transferFrom

Parameters

Requirements

approve

Parameters

burn

Parameters

Requirements

finalize

Parameters

Modifiers

Requirements

internal SimpleToken.checkTransferAllowed

Parameters

Requirements

internal Owned.isOwner

Parameters

internal OpsManaged.isAdmin

Parameters

internal OpsManaged.isOps

Parameters

internal OpsManaged.isOwnerOrOps

Parameters

internal Owned.isOwner

Parameters