Veredictum Ventana Token Sale

Ethereum ERC20 Token sale for the Veredictum anti-piracy platform on distributed technology.

www.veredictum.io

This contract is written in order to raise an inital fund of ether in exchange for ERC20 tokens which will have utility value upon the Veredictum platform.

All funds are held in the contract as escrow until the ICO is conditionally successful allowing for the funds to be removed into the fund wallet.

Contributors of a failed fund raising will be able claim a refund of the amount of ether they have contributed.

The fund raising period is from the configured start date upto 28 days. The contract may accept pre-funds from KYC'ed addresses in the period between deployment and the start date up to the limit of the maximum funding cap.

Non-KYC addresses may fund up to the juristictional regulated maximum equivilent of $10,000USD.

Bonus tokens will be generated at the following funding tranches per transaction.

Contributed	Bonus Tokens
$2,000,000	35%
$500,000	30%
$100,000	20%
$25,000	15%
$10,000	10%
$5,000	5%

The ICO fund raising has a minimum cap of $2,000,000USD and maximum of $20,000,000USD with a base conversion ratio of 3 VNT tokens per US dollar.

ETH/USD calculations are at the rate given at deployment.

The ICO will only be considered successful if the funds raised exceed the minimum cap and those funds have been swept to the FUND_WALLET.

Owners of an ICO which has raised minimum funds may call finalizeICO() before the end date is reached which sets icoSuccessful to true. No further ether deposits will be accepted by the contract.

ERC20 token transfers are prevented until the ICO is successful.

The ICO will be considered failed if the minimum cap has not been reach by the 29th day or the owner has aborted the ICO. In the event of a failed ICO, the ether contributed can be recovered unto the funders address using the refund(address) function. It may be called by anyone on the condition the fund has failed.

If a security issue arrises during the time of funding and up until funds are swept to the fund wallet, the owner can call abort(). This will force the ICO to fail and allow refunds to be enacted.

Deployment and Operation Instructions

The contract parameters are hard coded and must be updated before compilation and depolyment.

The constructor takes no arguments. Some protection against invalid parameters is coded into the constructor. If the contract fails to deploy, it may be because of an invalid configuration.

1. Audit predeployed fund wallet and address.
2. Copy and paste the fund wallet address to FUND_WALLET constant in VentanaTokenConfig.
3. Replace USD_PER_ETH = 0 with the market price at time of configuration of VentanaTokenConfig.
4. Optionally replace owner = msg.sender with an alternative audited address if the deploying account is not to be the owner.
5. Check all parameters of VentanaTokenConfig are correct.
6. Compile and deploy by prefered method.
7. Verify the deployed contract on etherscan.io.
8. Audit the verified contract's getters.
9. Owner and parties Watch the contract in their preferred wallets.

ABI

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"veredictum","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"abort","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"START_DATE","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"finaliseICO","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"MAX_ETH_FUND","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"},{"name":"_kyc","type":"bool"}],"name":"addKycAddress","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"proxyPurchase","outputs":[{"name":"","type":"bool"}],"payable":true,"type":"function"},{"constant":true,"inputs":[],"name":"END_DATE","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"changeVeredictum","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"fundSucceeded","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"fundFailed","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"MIN_ETH_FUND","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"MAX_USD_FUND","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"icoSuccessful","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"kycAddresses","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_wei","type":"uint256"}],"name":"ethToUsd","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"KYC_ETH_LMT","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_wei","type":"uint256"}],"name":"ethToTokens","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"changeOwner","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"etherContributed","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"MIN_USD_FUND","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"USD_PER_ETH","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"TOKENS_PER_ETH","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_usd","type":"uint256"}],"name":"usdToEth","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"etherRaised","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"KYC_USD_LMT","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"newOwner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"TOKENS_PER_USD","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"tokenAddress","type":"address"},{"name":"amount","type":"uint256"}],"name":"transferAnyERC20Token","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"FUND_WALLET","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"usdRaised","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"MAX_TOKENS","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"FUNDING_PERIOD","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"refund","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"inputs":[],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_addr","type":"address"},{"indexed":true,"name":"_kyc","type":"bool"}],"name":"KYCAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_addr","type":"address"},{"indexed":true,"name":"_value","type":"uint256"}],"name":"Refunded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"}],"name":"ChangedOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_to","type":"address"}],"name":"ChangeOwnerTo","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_wallet","type":"address"},{"indexed":true,"name":"_value","type":"uint256"}],"name":"FundsTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"Approval","type":"event"}]

Release Notes

Release Notes
-------------
0.0.10
* remove `constant` from FUND_WALLET declaration as assigning `msg.sender` is
not compile time constant.
* redeclared FUND_WALLET to `address public fundWallet`
* `fundSucceeded()` returns true on `etherRaised >= MIN_ETH_FUND` instead of
waiting for `END_DATE`

Ventana token sale configuration

The ICO configuration is by way of precompiled constants. At a minimum, FUND_WALLET and USD_PER_ETH are required to be edited with correct values.

contract VentanaTokenConfig
{
    // ERC20 trade name and symbol
    string public           name            = "Ventana";
    string public           symbol          = "VNT";

    // Owner has power to abort, discount addresses, sweep successful funds,
    // change owner, sweep alien tokens.
    address public          owner           = msg.sender;
    
    // Fund wallet should also be audited prior to deployment
    // NOTE: Must be checksummed address!
    address public          fundWallet      = 0x0;
    
    // Tokens awarded per USD contributed
    uint public constant    TOKENS_PER_USD  = 3;

    // Ether market price in USD
    uint public constant    USD_PER_ETH     = 0;
    
    // Minimum and maximum target in USD
    uint public constant    MIN_USD_FUND    = 2000000;  // $2m
    uint public constant    MAX_USD_FUND    = 20000000; // $20m
    
    // Non-KYC contribution limit in USD
    uint public constant    KYC_USD_LMT     = 10000;
    
    // There will be exactly 300,000,000 tokens regardless of number sold
    // Unsold tokens are put into the Strategic Growth token pool
    uint public constant    MAX_TOKENS      = 300000000;
    
    // Funding begins on 14th August 2017
    // `+ new Date('14 August 2017 GMT+0')/1000`
    uint public constant    START_DATE      = 1502668800;
    
    // Period for fundraising
    uint public constant    FUNDING_PERIOD  = 28 days;
}

name The Ventana token name "Ventana"

symbol Ventana trade symbol "VNT"

owner The address of the contract owner.

The deployer may wish this address be singularly controlled (rather than multi-sig) to facilite efficient adding of KYC'd addresses or causing an emergency abort. It does not have permissions to control or access funds. Ownership should be handed over to the multisig after a successful ICO.

The owner is permissioned to call:

• finalizeICO() On condition the ICO is successful
• addKycAddress() Up until the END_DATE
• abort() On condition the ICO has not succeeded
• changeOwner() At any time
• changeVeredictum(address _addr) at any time

fundWallet The wallet that raised funds will be swept when finalizeICO() is called after a successful funding.

TOKENS_PER_USD The base number of tokens to be created per US dollar equivilent paid

USD_PER_ETH The ETH/USD market rate at the time of deployment. This is used for token creation calculations.

MIN_USD_FUND The minimum USD funds required for the ICO to be successful

MAX_USD_FUND The maximum USD funds that can be raised

MAX_TOKENS The total number of tokens that will be in supply

KYC_USD_LMT The USD limit over which Know Your Customer regulations apply. Funders who are not KYC'd can only contribute up to this amount.

START_DATE The date at which funds will be accepted from non-KYC'ed addresses. KYC'ed addresses can contribute funds before this date.

FUNDING_PERIOD The period after START_DATE until funding closes.

ERC20 Functions

symbol

function symbol() public constant returns (string)

Returns the ERC20 trade symbol

totalSupply

function totalSupply() public constant returns (uint)

Returns the total supply of tokens

balanceOf

function balanceOf(address _addr) public constant returns (uint)

Returns the balance of tokens for an address

allowance

function allowance(address _owner, address _spender) public constant returns (uint)

Returns the balance of tokens a thridparty may transfer from an address

transfer

function transfer(address _to, uint256 _amount) public returns (bool)

Transfers an amount of tokens to a recipient address

Token transfers are blocked until icoSuccessful==true

_to The address of the recipient

_amount The amount of tokens to transfer

Returns success bool

transferFrom

function transferFrom(address _from, address _to, uint256 _amount) public returns (bool)

Transfers and amount of tokens from a third party address to a recipient on the condition it is approved by the third party.

Token transfers are blocked until icoSuccessful==true

_from The holder address of tokens to be sent

_to The address of the recipient

_amount The amount of tokens to transfer

approve

function approve(address _spender, uint256 _amount) public returns (bool)

Approves a spend to transfer an amount of tokens

Approval is blocked until icoSuccessful==true

_spender The address of the approved spender

_amount The amount of tokens the spender is allowed to transfer

VentanaToken Functions

()

function () payable

The default function is payable and calls proxyPurchase(msg.sender)

fundSucceeded

function fundSucceeded() public constant returns (bool)

Returns true if MIN_FUNDS were raised and the ICO was not aborted

fundFailed

function fundFailed() public constant returns (bool)

Returns true if the ICO was aborted or MIN_FUNDS were not raised before END_DATE.

icoSuccessful

function icoSuccessful() public constant returns (bool)

Returns true if MIN_FUNDS has been raised and the funds have been sweept to the fund wallet.

Token transfers are blocked until icoSuccessful==true

A successful ICO will reject further ether deposits.

etherRaised

function etherRaised() public constant returns (uint)

Returns the total ether raised during funding

usdRaised

function usdRaised() public constant returns (uint)

Returns the USD equivilent raised for the set ETH/USD rate

TOKENS_PER_ETH

function TOKENS_PER_ETH() public constant returns(uint)

Returns the base eth to tokens conversion ratio

MIN_ETH_FUND

function MIN_ETH_FUND() public constant returns (uint)

Returns the minimum ether to be raised for the ICO to not fail

MAX_ETH_FUND

function MAX_ETH_FUND() public constant returns (uint)

Returns the ether value beyond which the ICO will deny further funding.

KYC_ETH_LMT

function KYC_ETH_LMT() public constant returns (uint)

Returns the ether limit above which KYC is required

START_DATE

function START_DATE() public constant returns (uint)

Returns the timestamp after which funding from non-KYC accounts is accepted. It also determines the END_DATE as START_DATE + FUNDING_PERIOD

weiToTokens

function weiToTokens(uint _wei) public constant returns (uint);

Returns token/ether conversion given an ether value (in wei). This calculation includes the following bonus token tranches for levels of USD contributed:

Contributed	Bonus Tokens
$2,000,000	35%
$500,000	30%
$100,000	20%
$25,000	15%
$10,000	10%
$5,000	5%

_wei An amount of ether denominated in wei

kycAddresses

function kycAddresses(address _addr) public constant returns (bool)

Returns the KYC boolean state for an address

_addr An address

etherContributed

function etherContributed(address _addr) public constant returns (uint)

Return the ether value contributed by an address

_addr An address

abort

function abort() public returns (bool)

The owner can cancel the token sale any time prior to funds being swept into the fund wallet

proxyPurchase

function proxyPurchase(address _addr) payable returns (bool)

Converts sent ether to a number of tokens which are transferred to_addr on the condition the ICO has neither failed nor succeded.

_addr An address to register tokens against

addKycAddress

function addKycAddress(address _addr, bool _kyc) public returns (bool)

Registers or deregisters an address as a known customer (KYC) which allows funds to be contributed above the KYC limit.

_addr An address.

_kyc A boolean KYC state.

finaliseICO

function finaliseICO() public returns (bool)

This action will set icoSuccessful to true if fundSucceeded() returns true. Raised funds are then swept to FUND_WALLET. Tokens are transferrable after this function successfully returns.

refund

function refund(address _addr) public returns (bool);

A token holder can call a refund of contributed ether from a failed ICO

_addr The address of a token holder to refund

changeOwner

function changeOwner(address _newOwner) public returns (bool)

The owner can initiate an ownership change at any time. The new owner must call acceptOwnership() for ownership to be transferred

_newOwner The new owner address

acceptOwnership

function acceptOwnership() public returns (bool)

For a potential owner to accept ownership. Required to prove new owner address can call the contract.

changeVeredictum

changeVeredictum(address _addr) public returns (bool)

Allows the owner to change the Veredictum utility contract the Ventana token contract interacts with.

destroy

destroy()

Allows the owner to remove the contract from the blockchain on the condition it has been aborted and the ther balance is 0.

transferAnyERC20Token

function transferAnyERC20Token(address tokenAddress, uint amount) public returns (bool)

Allows any ERC20 tokens owned by this contract's address to transferred to the owner address

Events

KYCAddress

DiscountedAddress(address indexed _addr, uint indexed _tranch);

Triggered when the owner registers an address with a tranched bonus

Refunded

Refunded(address indexed _addr, uint indexed _value);

Triggered when an account is refunded after a failed ICO

ChangeOwnerTo

ChangeOwnerTo(address indexed _to);

Triggered when the owner initiates a change of ownership

ChangedOwner

ChangedOwner(address indexed _from, address indexed _to);

Triggered when a new owner accepts ownership

FundsTransferred

FundsTransferred(address intexed _wallet, uint indexed _value);

Triggered when raised funds are transferred to the fund wallet. This also indicated that tokens have become transferable

Transfer

Transfer(address indexed _from, address indexed _to, uint256 _value);

Triggered when tokens have been transferred

Approval

Approval(address indexed _owner, address indexed _spender, uint256 _value);

Triggered when a third party sender is approved

Conditional Entry Table

Functions must throw on F conditions

Conditional Entry Table (functions must throw on F conditions)

renetry prevention on all public mutating functions Reentry mutex set in moveFundsToWallet(), refund()

function	<START_DATE	<END_DATE	fundFailed	fundSucceeded	icoSucceeded
()	KYC	T	F	T	F
abort()	T	T	T	T	F
proxyPurchase()	KYC	T	F	T	F
addKycAddress()	T	T	F	T	T
finaliseICO()	F	F	F	T	T
refund()	F	F	T	F	F
transfer()	F	F	F	F	T
transferFrom()	F	F	F	F	T
approve()	F	F	F	F	T
changeOwner()	T	T	T	T	T
acceptOwnership()	T	T	T	T	T
changeVeredictum()	T	T	T	T	T
destroy()	F	F	!__abortFuse	F	F
transferAnyERC20Tokens()	T	T	T	T	T