VIDT Datalink

0xfef4185594457050cc9c23980d301908fe057bb1 Copy

ERC20

This contract is an ERC20 token.

Name VIDT Datalink

Symbol VIDT

Decimals 18

Total Supply 56,197,116 VIDT

About

VIDT Datalink (VIDT) is a cryptocurrency and operates on the Ethereum platform. VIDT Datalink has a current supply of 57,386,799 with 49,428,303.18412282 in circulation. The last known price of VIDT Datalink is 0.36423634 USD and is down -8.01 over the last 24 hours. It is currently trading on 14 active market(s) with $3,138,056.61 traded over the last 24 hours. More information can be found at https://www.vidt-datalink.com.

Stats

Public Functions 51

Event Types 10

Code Size 19,974 bytes

Library Use

Uses SafeMath for uint256.

Uses SafeERC20 for ERC20.

Events (10)

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

Freeze Event

Parameters

target	address
frozen	bool

ListFile Event

Parameters

index	uint256
data	string
nft	uint256

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Pause Event

Parameters

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

Unpause Event

Parameters

ValidateFile Event

Parameters

index	uint256
data	string
nftID	uint256

ValidatePublisher Event

Parameters

publisherAddress	address
state	bool
publisherName	string

ValidateWallet Event

Parameters

walletAddress	address
state	bool
walletName	string

Structs (1)

fStruct Struct

Members

index	uint256
nft	uint256

Constants (1)

initialSupply Constant

uint256

100000000

State Variables (25)

unused Variable

uint256

token_number Variable

uint256

paused Variable

bool

_balances Variable

mapping(address => uint256)

Internal Variable

_allowances Variable

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

Internal Variable

frozenAccounts Variable

mapping(address => bool)

Internal Variable

verifiedPublishers Variable

mapping(address => bool)

Internal Variable

verifiedWallets Variable

mapping(address => bool)

Internal Variable

verifiedNFTs Variable

mapping(uint256 => string)

Internal Variable

publicNFT Variable

bool

Internal Variable

fileHashes Variable

mapping(string => fStruct)

Internal Variable

fileIndex Variable

string[]

Internal Variable

_name Variable

string

Internal Variable

_symbol Variable

string

Internal Variable

_decimals Variable

uint8

Internal Variable

_totalSupply Variable

uint256

Internal Variable

_validationPrice Variable

uint256

Internal Variable

_validationFee Variable

uint256

Internal Variable

_validationWallet Variable

address

Internal Variable

mainWallet Variable

address

Internal Variable

oldContract Variable

address

Internal Variable

_nftContract Variable

address

Internal Variable

_nftdContract Variable

address

Internal Variable

_owner Variable

address

Internal Variable

mainWallet Variable

address

Internal Variable

Functions Expand All Collapse All

owner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function owner() public view returns (address) {
  return _owner;
}

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  _transferOwnership(newOwner);
}

pause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

whenNotPaused checks for the following:

paused must not be true

Source Code

function pause() public onlyOwner whenNotPaused {
  paused = true;
  emit Pause();
}

unpause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

whenPaused checks for the following:

paused must be true

Source Code

function unpause() public onlyOwner whenPaused {
  paused = false;
  emit Unpause();
}

getOwner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function getOwner() external view virtual override returns (address) {
  return owner();
}

decimals

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function decimals() external view virtual override returns (uint8) {
  return _decimals;
}

symbol

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function symbol() external view virtual override returns (string memory) {
  return _symbol;
}

name

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function name() external view virtual override returns (string memory) {
  return _name;
}

nameChange

Parameters

Name	Type
newName	string

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function nameChange(string memory newName) public onlyOwner {
  _name = newName;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() external view virtual override returns (uint256) {
  return _totalSupply;
}

balanceOf

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address account)
  external
  view
  virtual
  override
  returns (uint256)
{
  return _balances[account];
}

transfer

Parameters

Name	Type
recipient	address
amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

One or more of the following: - recipient must be equal to the result of calling owner - ORfrozenAccounts for the sender's address must not be true

frozenAccounts for recipient must not be true

the result of calling _msgSender must not be equal to UNKNOWN VALUE

One or more of the following: - recipient must not be equal to UNKNOWN VALUE

Source Code

function transfer(address recipient, uint256 amount)
  external
  override
  whenNotPaused
  returns (bool)
{
  require(
    !frozenAccounts[msg.sender] || recipient == owner(),
    "T1 - The wallet of sender is frozen"
  );
  require(!frozenAccounts[recipient], "T2 - The wallet of recipient is frozen");

  _transfer(_msgSender(), recipient, amount);
  return true;
}

transferToken

Parameters

Name	Type
tokenAddress	address
tokens	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function transferToken(address tokenAddress, uint256 tokens)
  external
  onlyOwner
{
  ERC20(tokenAddress).transfer(owner(), tokens);
}

allowance

Parameters

Name	Type
owner	address
spender	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address owner, address spender)
  external
  view
  override
  returns (uint256)
{
  return _allowances[owner][spender];
}

approve

Parameters

Name	Type
spender	address
amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

One or more of the following:

the result of calling _msgSender must not be equal to UNKNOWN VALUE

spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address spender, uint256 amount)
  external
  override
  whenNotPaused
  returns (bool)
{
  require(
    (amount == 0) || (_allowances[msg.sender][spender] == 0),
    "A1- Reset allowance to 0 first"
  );

  _approve(_msgSender(), spender, amount);
  return true;
}

transferFrom

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

frozenAccounts for sender must not be true

One or more of the following: - recipient must be equal to the result of calling owner - ORfrozenAccounts for recipient must not be true

the result of calling _msgSender must not be equal to UNKNOWN VALUE

One or more of the following: - recipient must not be equal to UNKNOWN VALUE

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address sender,
  address recipient,
  uint256 amount
) external override whenNotPaused returns (bool) {
  require(!frozenAccounts[sender], "TF1 - The wallet of sender is frozen");
  require(
    !frozenAccounts[recipient] || recipient == owner(),
    "TF2 - The wallet of recipient is frozen"
  );

  _transfer(sender, recipient, amount);
  _approve(
    sender,
    _msgSender(),
    _allowances[sender][_msgSender()].sub(
      amount,
      "TF1 - Transfer amount exceeds allowance"
    )
  );
  return true;
}

increaseAllowance

Parameters

Name	Type
spender	address
addedValue	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function increaseAllowance(address spender, uint256 addedValue)
  public
  whenNotPaused
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].add(addedValue)
  );
  return true;
}

increaseApproval

Parameters

Name	Type
spender	address
addedValue	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function increaseApproval(address spender, uint256 addedValue)
  public
  override
  whenNotPaused
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].add(addedValue)
  );
  return true;
}

decreaseAllowance

Parameters

Name	Type
spender	address
subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function decreaseAllowance(address spender, uint256 subtractedValue)
  public
  whenNotPaused
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].sub(
      subtractedValue,
      "DA1 - Decreased allowance below zero"
    )
  );
  return true;
}

decreaseApproval

Parameters

Name	Type
spender	address
subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function decreaseApproval(address spender, uint256 subtractedValue)
  public
  override
  whenNotPaused
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].sub(
      subtractedValue,
      "DA1 - Decreased allowance below zero"
    )
  );
  return true;
}

burn

Parameters

Name	Type
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function burn(uint256 amount) public {
  _burn(_msgSender(), amount);
}

freeze

Parameters

Name	Type
_address	address
_state	bool

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function freeze(address _address, bool _state) public onlyOwner returns (bool) {
  frozenAccounts[_address] = _state;
  emit Freeze(_address, _state);
  return true;
}

burnFrom

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function burnFrom(address account, uint256 amount) public {
  uint256 decreasedAllowance = _allowances[account][_msgSender()].sub(
    amount,
    "BF1 - Burn amount exceeds allowance"
  );
  _approve(account, _msgSender(), decreasedAllowance);
  _burn(account, amount);
}

transferByOwner

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function transferByOwner(address _to, uint256 _value)
  public
  onlyOwner
  returns (bool success)
{
  _balances[msg.sender] = _balances[msg.sender].sub(_value);
  _balances[_to] = _balances[_to].add(_value);

  emit Transfer(msg.sender, _to, _value);

  return true;
}

batchTransferByOwner

Parameters

Name	Type
_addresses	address[]
_amounts	uint256[]

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Requirements

the number of values in _addresses must be equal to the number of values in _amounts

Source Code

function batchTransferByOwner(
  address[] memory _addresses,
  uint256[] memory _amounts
) public onlyOwner returns (bool success) {
  require(
    _addresses.length == _amounts.length,
    "BT1 - Addresses length must be equal to amounts length"
  );

  uint256 i = 0;
  for (i = 0; i < _addresses.length; i++) {
    _balances[msg.sender] = _balances[msg.sender].sub(_amounts[i]);
    _balances[_addresses[i]] = _balances[_addresses[i]].add(_amounts[i]);
    emit Transfer(msg.sender, _addresses[i], _amounts[i]);
  }
  return true;
}

validatePublisher

Parameters

Name	Type
Address	address
State	bool
Publisher	string

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function validatePublisher(
  address Address,
  bool State,
  string memory Publisher
) public onlyOwner returns (bool) {
  verifiedPublishers[Address] = State;
  emit ValidatePublisher(Address, State, Publisher);
  return true;
}

validateWallet

Parameters

Name	Type
Address	address
State	bool
Wallet	string

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function validateWallet(
  address Address,
  bool State,
  string memory Wallet
) public onlyOwner returns (bool) {
  verifiedWallets[Address] = State;
  emit ValidateWallet(Address, State, Wallet);
  return true;
}

validateFile

Parameters

Name	Type
To	address
Payment	uint256
Data	bytes
cStore	bool
eLog	bool
NFT	bool

Properties

Visibility public

Mutability payable

Requirements

One or more of the following: - _validationFee must be less than or equal to msg.value - OR Payment must be greater than or equal to _validationPrice

the number of values in Data must be equal to 64

Source Code

function validateFile(
  address To,
  uint256 Payment,
  bytes calldata Data,
  bool cStore,
  bool eLog,
  bool NFT
) external payable returns (bool) {
  require(
    Payment >= _validationPrice || msg.value >= _validationFee,
    "V1 - Insufficient payment provided"
  );
  require(verifiedPublishers[msg.sender], "V2 - Unverified publisher address");
  require(Data.length == 64, "V3 - Invalid hash provided");

  if (!verifiedWallets[To]) {
    To = _validationWallet;
  }

  uint256 index = 0;
  string memory fileHash = string(Data);

  if (cStore) {
    if (fileIndex.length > 0) {
      require(
        fileHashes[fileHash].index == 0,
        "V4 - This hash was previously validated"
      );
    }

    fileIndex.push(fileHash);
    fileHashes[fileHash].index = fileIndex.length - 1;
    index = fileHashes[fileHash].index;
  }

  bool nft_created = false;
  uint256 nftID = 0;

  if (NFT) {
    bytes memory nft_data = "";
    require(fileHashes[fileHash].nft == 0, "V5 - NFT exists already");
    (nft_created, nft_data) = _nftContract.delegatecall(
      abi.encodeWithSignature("createNFT(bytes)", Data)
    );
    require(nft_created, "V6 - NFT contract call failed");

    nftID = uint256(bytesToBytes32(nft_data, 0));

    verifiedNFTs[nftID] = fileHash;
    fileHashes[fileHash].nft = nftID;
  }

  if (_allowances[To][msg.sender] >= Payment) {
    _allowances[To][msg.sender] = _allowances[To][msg.sender].sub(Payment);
  } else {
    _balances[msg.sender] = _balances[msg.sender].sub(Payment);
    _balances[To] = _balances[To].add(Payment);
  }

  if (eLog) {
    emit ValidateFile(index, fileHash, nftID);
  }

  emit Transfer(msg.sender, To, Payment);
  return true;
}

memoryValidateFile

Parameters

Name	Type
Payment	uint256
Data	bytes

Properties

Visibility public

Mutability payable

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

One or more of the following: - _validationFee must be less than or equal to msg.value - OR Payment must be greater than or equal to _validationPrice

the number of values in Data must be equal to 64

Source Code

function memoryValidateFile(uint256 Payment, bytes calldata Data)
  external
  payable
  whenNotPaused
  returns (bool)
{
  require(
    Payment >= _validationPrice || msg.value >= _validationFee,
    "V1 - Insufficient payment provided"
  );
  require(verifiedPublishers[msg.sender], "V2 - Unverified publisher address");
  require(Data.length == 64, "V3 - Invalid hash provided");

  uint256 index = 0;
  string memory fileHash = string(Data);

  if (fileIndex.length > 0) {
    require(
      fileHashes[fileHash].index == 0,
      "V4 - This hash was previously validated"
    );
  }

  fileIndex.push(fileHash);
  fileHashes[fileHash].index = fileIndex.length - 1;
  index = fileHashes[fileHash].index;

  _balances[msg.sender] = _balances[msg.sender].sub(Payment);
  _balances[_validationWallet] = _balances[_validationWallet].add(Payment);

  emit Transfer(msg.sender, _validationWallet, Payment);
  return true;
}

validateNFT

Parameters

Name	Type
Payment	uint256
Data	bytes
divisable	bool

Properties

Visibility public

Mutability payable

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

One or more of the following: - _validationFee must be less than or equal to msg.value - OR Payment must be greater than or equal to _validationPrice

One or more of the following: -publicNFT must be true

the number of values in Data must be equal to 64

undefined.nft must be equal to 0

nft_created must be true

Source Code

function validateNFT(
  uint256 Payment,
  bytes calldata Data,
  bool divisable
) external payable whenNotPaused returns (bool) {
  require(
    Payment >= _validationPrice || msg.value >= _validationFee,
    "V1 - Insufficient payment provided"
  );
  require(
    publicNFT || verifiedPublishers[msg.sender],
    "V2 - Unverified publisher address"
  );
  require(Data.length == 64, "V3 - Invalid hash provided");

  uint256 index = 0;
  string memory fileHash = string(Data);
  bool nft_created = false;
  uint256 nftID = 0;
  bytes memory nft_data = "";

  require(fileHashes[fileHash].nft == 0, "V5 - NFT exists already");

  if (divisable) {
    (nft_created, nft_data) = _nftdContract.delegatecall(
      abi.encodeWithSignature("createNFT(bytes)", Data)
    );
  } else {
    (nft_created, nft_data) = _nftContract.delegatecall(
      abi.encodeWithSignature("createNFT(bytes)", Data)
    );
  }
  require(nft_created, "V6 - NFT contract call failed");

  nftID = uint256(bytesToBytes32(nft_data, 0));

  verifiedNFTs[nftID] = fileHash;
  fileHashes[fileHash].nft = nftID;

  _balances[msg.sender] = _balances[msg.sender].sub(Payment);
  _balances[_validationWallet] = _balances[_validationWallet].add(Payment);

  emit Transfer(msg.sender, _validationWallet, Payment);
  emit ValidateFile(index, fileHash, nftID);
  return true;
}

simpleValidateFile

Parameters

Name	Type
Payment	uint256

Properties

Visibility public

Mutability payable

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

One or more of the following: - _validationFee must be less than or equal to msg.value - OR Payment must be greater than or equal to _validationPrice

Source Code

function simpleValidateFile(uint256 Payment)
  external
  payable
  whenNotPaused
  returns (bool)
{
  require(
    Payment >= _validationPrice || msg.value >= _validationFee,
    "V1 - Insufficient payment provided"
  );
  require(verifiedPublishers[msg.sender], "V2 - Unverified publisher address");

  _balances[msg.sender] = _balances[msg.sender].sub(Payment);
  _balances[_validationWallet] = _balances[_validationWallet].add(Payment);

  emit Transfer(msg.sender, _validationWallet, Payment);
  return true;
}

covertValidateFile

Parameters

Name	Type
Payment	uint256

Properties

Visibility public

Mutability payable

Modifiers

whenNotPaused checks for the following:

paused must not be true

Requirements

One or more of the following: - _validationFee must be less than or equal to msg.value - OR Payment must be greater than or equal to _validationPrice

Source Code

function covertValidateFile(uint256 Payment)
  external
  payable
  whenNotPaused
  returns (bool)
{
  require(
    Payment >= _validationPrice || msg.value >= _validationFee,
    "V1 - Insufficient payment provided"
  );
  require(verifiedPublishers[msg.sender], "V2 - Unverified publisher address");

  _balances[msg.sender] = _balances[msg.sender].sub(Payment);
  _balances[_validationWallet] = _balances[_validationWallet].add(Payment);
  return true;
}

verifyFile

Parameters

Name	Type
fileHash	string

Properties

Visibility public

Mutability view

Source Code

function verifyFile(string memory fileHash)
  public
  view
  returns (bool verified)
{
  verified = true;
  if (fileIndex.length == 0) {
    verified = false;
  }
  bytes memory a = bytes(fileIndex[fileHashes[fileHash].index]);
  bytes memory b = bytes(fileHash);
  if (a.length != b.length) {
    verified = false;
  }
  if (verified) {
    for (uint256 i = 0; i < a.length; i++) {
      if (a[i] != b[i]) {
        verified = false;
      }
    }
  }
  if (!verified) {
    bool heritage_call = false;
    bytes memory heritage_data = "";
    (heritage_call, heritage_data) = oldContract.staticcall(
      abi.encodeWithSignature("verifyFile(string)", fileHash)
    );
    require(heritage_call, "V0 - Old contract call failed");
    assembly {
      verified := mload(add(heritage_data, 32))
    }
  }
}

verifyPublisher

Parameters

Name	Type
_publisher	address

Properties

Visibility public

Mutability view

Source Code

function verifyPublisher(address _publisher)
  public
  view
  returns (bool verified)
{
  verified = verifiedPublishers[_publisher];
}

verifyWallet

Parameters

Name	Type
_wallet	address

Properties

Visibility public

Mutability view

Source Code

function verifyWallet(address _wallet) public view returns (bool verified) {
  verified = verifiedWallets[_wallet];
}

frozenAccount

Parameters

Name	Type
_account	address

Properties

Visibility public

Mutability view

Source Code

function frozenAccount(address _account) public view returns (bool frozen) {
  frozen = frozenAccounts[_account];
}

verify

Parameters

Name	Type
fileHash	string

Properties

Visibility public

Mutability view

Source Code

function verify(string memory fileHash) public view returns (bool) {
  if (fileIndex.length == 0) {
    return false;
  }
  bytes memory a = bytes(fileIndex[fileHashes[fileHash].index]);
  bytes memory b = bytes(fileHash);
  if (a.length != b.length) {
    return false;
  }
  for (uint256 i = 0; i < a.length; i++) {
    if (a[i] != b[i]) {
      return false;
    }
  }
  return true;
}

verifyFileNFT

Parameters

Name	Type
fileHash	string

Properties

Visibility public

Mutability view

Source Code

function verifyFileNFT(string memory fileHash) public view returns (uint256) {
  if (fileIndex.length == 0) {
    return 0;
  }
  bytes memory a = bytes(fileIndex[fileHashes[fileHash].index]);
  bytes memory b = bytes(fileHash);
  if (a.length != b.length) {
    return 0;
  }
  for (uint256 i = 0; i < a.length; i++) {
    if (a[i] != b[i]) {
      return 0;
    }
  }
  return fileHashes[fileHash].nft;
}

verifyNFT

Parameters

Name	Type
nftID	uint256

Properties

Visibility public

Mutability view

Source Code

function verifyNFT(uint256 nftID) public view returns (string memory hash) {
  hash = verifiedNFTs[nftID];
}

setPrice

Parameters

Name	Type
newPrice	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function setPrice(uint256 newPrice) public onlyOwner {
  _validationPrice = newPrice;
}

setFee

Parameters

Name	Type
newFee	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function setFee(uint256 newFee) public onlyOwner {
  _validationFee = newFee;
}

setWallet

Parameters

Name	Type
newWallet	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function setWallet(address newWallet) public onlyOwner {
  _validationWallet = newWallet;
}

setContracts

Parameters

Name	Type
nftContract	address
nftdContract	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function setContracts(address nftContract, address nftdContract)
  public
  onlyOwner
{
  _nftContract = nftContract;
  _nftdContract = nftdContract;
}

setPublic

Parameters

Name	Type
_public	bool

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function setPublic(bool _public) public onlyOwner {
  publicNFT = _public;
}

listFiles

Parameters

Name	Type
startAt	uint256
stopAt	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Requirements

startAt must be less than or equal to the number of values in fileIndex - 1

Source Code

function listFiles(uint256 startAt, uint256 stopAt)
  public
  onlyOwner
  returns (bool)
{
  if (fileIndex.length == 0) {
    return false;
  }
  require(startAt <= fileIndex.length - 1, "L1 - Please select a valid start");
  if (stopAt > 0) {
    require(
      stopAt > startAt && stopAt <= fileIndex.length - 1,
      "L2 - Please select a valid stop"
    );
  } else {
    stopAt = fileIndex.length - 1;
  }
  for (uint256 i = startAt; i <= stopAt; i++) {
    emit ListFile(i, fileIndex[i], fileHashes[fileIndex[i]].nft);
  }
  return true;
}

withdraw

Parameters

Name	Type
_ownerAddress	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

One or more of the following: - mainWallet must be equal to the result of calling _msgSender - OR _owner must be equal to the result of calling _msgSender

Source Code

function withdraw(address payable _ownerAddress) external onlyOwner {
  _ownerAddress.transfer(address(this).balance);
}

validationPrice

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function validationPrice() public view returns (uint256) {
  return _validationPrice;
}

validationFee

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function validationFee() public view returns (uint256) {
  return _validationFee;
}

validationWallet

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function validationWallet() public view returns (address) {
  return _validationWallet;
}

nftContract

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function nftContract() public view returns (address) {
  return _nftContract;
}

nftdContract

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function nftdContract() public view returns (address) {
  return _nftdContract;
}

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 VIDT._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

One or more of the following: - recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "T1 - Transfer from the zero address");
  require(
    recipient != address(0) || frozenAccounts[sender],
    "T3 - Transfer to the zero address"
  );

  _balances[sender] = _balances[sender].sub(
    amount,
    "T4 - Transfer amount exceeds balance"
  );
  _balances[recipient] = _balances[recipient].add(amount);

  emit Transfer(sender, recipient, amount);
}

internal VIDT._burn

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function _burn(address account, uint256 amount) internal {
  require(account != address(0), "B1 - Burn from the zero address");

  _balances[account] = _balances[account].sub(
    amount,
    "B2 - Burn amount exceeds balance"
  );
  _totalSupply = _totalSupply.sub(amount);

  emit Transfer(account, address(0), amount);
}

internal VIDT._approve

Parameters

Name	Type
owner	address
spender	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 amount
) internal {
  require(owner != address(0), "A1 - Approve from the zero address");
  require(spender != address(0), "A2 - Approve to the zero address");

  _allowances[owner][spender] = amount;
  emit Approval(owner, spender, amount);
}

internal VIDT.bytesToBytes32

Parameters

Name	Type
b	bytes
offset	uint

Properties

Visibility private

Mutability pure

Source Code

function bytesToBytes32(bytes memory b, uint256 offset)
  private
  pure
  returns (bytes32)
{
  bytes32 out;
  for (uint256 i = 0; i < 32; i++) {
    out |= bytes32(b[offset + i] & 0xFF) >> (i * 8);
  }
  return out;
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  address msgSender = _msgSender();
  _owner = msgSender;
  emit OwnershipTransferred(address(0), msgSender);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address) {
  return msg.sender;
}

VIDT Datalink

ERC20

About link description

Stats

Library Use

Events (10) keyboard_arrow_up

Approval Event

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

Freeze Event

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

ListFile 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.

Pause 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.

Unpause Event

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

ValidateFile Event

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

ValidatePublisher Event

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

ValidateWallet Event

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

Structs (1) keyboard_arrow_up

fStruct Struct

Members

Constants (1) keyboard_arrow_up

initialSupply Constant

State Variables (25) keyboard_arrow_up

unused Variable

token_number Variable

paused Variable

_balances Variable

_allowances Variable

frozenAccounts Variable

verifiedPublishers Variable

verifiedWallets Variable

verifiedNFTs Variable

publicNFT Variable

fileHashes Variable

fileIndex Variable

_name Variable

_symbol Variable

_decimals Variable

_totalSupply Variable

_validationPrice Variable

_validationFee Variable

_validationWallet Variable

mainWallet Variable

oldContract Variable

_nftContract Variable

_nftdContract Variable

_owner Variable

mainWallet Variable

Functions Expand All Collapse All

owner 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

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

pause 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:

whenNotPaused checks for the following:

Source Code

unpause 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.

About

Events (10)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Structs (1)

Constants (1)

State Variables (25)

owner

Parameters

transferOwnership

Parameters

Modifiers

Requirements

pause

Parameters

Modifiers

unpause

Parameters

Modifiers

getOwner

Parameters

decimals

Parameters

symbol

Parameters

name

Parameters

nameChange

Parameters

Modifiers

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Modifiers

Requirements

transferToken

Parameters

Modifiers

allowance

Parameters

approve

Parameters

Modifiers

Requirements

transferFrom

Parameters

Modifiers

Requirements

increaseAllowance

Parameters

Modifiers