Feature Tip: Add private address tag to any address under My Name Tag !
Overview
Max Total Supply
8,306,115.701105131874637861 ICHI
Holders
595 (0.00%)
Market
Price
$0.75 @ 0.000217 ETH (-0.17%)
Onchain Market Cap
$6,251,888.70
Circulating Supply Market Cap
$6,875,094.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.009204189708378992 ICHIValue
$0.01 ( ~2.87712678283793E-06 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Uniswap V3 (Ethereum) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0XF57E7E7C23978C3CAEC3C3548E3D615C346E79FF | $0.7518 0.0002164 Eth | $13,828.48 18,481.047 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 66.6040% |
2 | Uniswap V3 (Ethereum) | 0X0D438F3B5175BEBC262BF23753C1E53D03432BDE-0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | $0.7548 0.0002173 Eth | $3,313.35 43.682 0X0D438F3B5175BEBC262BF23753C1E53D03432BDE | 0.1574% |
3 | Uniswap V3 (Polygon) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $0.7533 0.0002168 Eth | $2,783.50 3,685.283 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 13.2814% |
4 | Retro | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.7616 0.0002193 Eth | $625.18 833.097 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 3.0024% |
5 | THENA FUSION | 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4-0X34294AFABCBAFFC616AC6614F6D2E17260B78BED | $0.7485 0.0002240 Eth | $408.69 543.924 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4 | 1.9603% |
6 | Uniswap V3 (Ethereum) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0XB8919522331C59F5C16BDFAA6A121A6E03A91F62 | $0.7571 0.0002179 Eth | $393.05 519.132 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 1.8709% |
7 | Retro | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X5D066D022EDE10EFA2717ED3D79F22F949F8C175 | $0.7615 0.0002193 Eth | $377.69 492.928 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 1.7765% |
8 | Uniswap V3 (Ethereum) | 0X111111111117DC0AA78B770FA6A738034120C302-0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | $0.7593 0.0002180 Eth | $345.81 836.735 0X111111111117DC0AA78B770FA6A738034120C302 | 3.0155% |
9 | Bancor (V2) | ICHI-BNT | $0.8753 0.0002519 Eth | $306.90 350.605 ICHI | 1.2635% |
10 | Uniswap V3 (Ethereum) | 0X4DB2C02831C9AC305FF9311EB661F80F1DF61E07-0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | $1.59 0.0004699 Eth | $269.32 270.628 0X4DB2C02831C9AC305FF9311EB661F80F1DF61E07 | 0.9753% |
11 | Uniswap V3 (Arbitrum One) | 0XADF5DD3E51BF28AB4F07E684ECF5D00691818790-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.7535 0.0002170 Eth | $243.14 324.018 0XADF5DD3E51BF28AB4F07E684ECF5D00691818790 | 1.1677% |
12 | Uniswap V3 (BSC) | 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $0.777 0.0002237 Eth | $124.72 162.063 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4 | 0.5841% |
13 | THENA FUSION | 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4-0X76A797A59BA2C17726896976B7B3747BFD1D220F | $0.763 0.0002197 Eth | $109.48 141.373 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4 | 0.5095% |
14 | Uniswap V3 (Ethereum) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X1A4B46696B2BB4794EB3D4C26F1C55F9170FA4C5 | $0.7876 0.0002378 Eth | $74.81 94.986 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.3423% |
15 | THENA FUSION | 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $0.763 0.0002197 Eth | $69.45 90.687 0X0EF4A107B48163AB4B57FCA36E1352151A587BE4 | 0.3268% |
16 | Ramses V2 | 0X354A6DA3FCDE098F8389CAD84B0182725C6C91DE-0XADF5DD3E51BF28AB4F07E684ECF5D00691818790 | $0.778 0.0002257 Eth | $57.92 0.262 0X354A6DA3FCDE098F8389CAD84B0182725C6C91DE | 0.0009% |
17 | Uniswap V3 (Arbitrum One) | 0XADF5DD3E51BF28AB4F07E684ECF5D00691818790-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.7571 0.0002180 Eth | $49.68 65.703 0XADF5DD3E51BF28AB4F07E684ECF5D00691818790 | 0.2368% |
18 | Uniswap V3 (Polygon) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $0.755 0.0002173 Eth | $21.13 28.206 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.1017% |
19 | Uniswap V3 (Polygon) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.755 0.0002173 Eth | $19.08 25.771 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.0929% |
20 | Uniswap V3 (Arbitrum One) | 0X4D22E37EB4D71D1ACC5F4889A65936D2A44A2F15-0XADF5DD3E51BF28AB4F07E684ECF5D00691818790 | $0.7304 0.0002104 Eth | $15.54 1,231.830 0X4D22E37EB4D71D1ACC5F4889A65936D2A44A2F15 | 4.4394% |
21 | Uniswap V3 (Ethereum) | 0X0D8775F648430679A709E98D2B0CB6250D2887EF-0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | $0.8509 0.0002512 Eth | $13.60 59.281 0X0D8775F648430679A709E98D2B0CB6250D2887EF | 0.2136% |
22 | Quickswap (v3) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.7654 0.0002203 Eth | $12.93 16.907 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.0609% |
23 | Ramses V2 | 0XADF5DD3E51BF28AB4F07E684ECF5D00691818790-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.7696 0.0002262 Eth | $4.07 5.161 0XADF5DD3E51BF28AB4F07E684ECF5D00691818790 | 0.0186% |
24 | Uniswap V3 (Polygon) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.7547 0.0002175 Eth | $3.83 5.074 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.0183% |
25 | Uniswap V3 (Polygon) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.7478 0.0002152 Eth | $2.77 3.727 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.0134% |
26 | SmarDex (Polygon) | 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $0.7493 0.0002157 Eth | $1.54 2.062 0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6 | 0.0074% |
Contract Name:
IchiV2
Compiler Version
v0.7.6+commit.7338295f
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.7.6; import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol"; import "../interfaces/IIchiV2.sol"; contract IchiV2 is IIchiV2 { using SafeMath for uint256; using SafeERC20 for IERC20; // EIP-20 token name for this token string public constant override name = "ICHI"; // EIP-20 token symbol for this token string public constant override symbol = "ICHI"; // EIP-20 token decimals for this token uint8 public constant override decimals = 18; // ICHI V1 address address public immutable override ichiV1; // constant that represents 100% uint256 constant PERCENT = 100; // constant that represents difference in decimals between ICHI V1 and ICHI V2 tokens uint256 constant DECIMALS_DIFF = 1e9; // constant that represents address(0) address constant NULL_ADDRESS = address(0); // Total number of tokens in circulation // Initially capped at 5 million ICHI, another 5 million can be minted via swaps with ICHI V1 // On top of it 2% extra (inflationary) tokens can be minted with 1 year intervals uint256 public override totalSupply = 5_000_000e18; // Address which may mint inflationary tokens address public override minter; // The timestamp after which inflationary minting may occur uint256 public override mintingAllowedAfter; // Minimum time between inflationary mints uint32 public constant override minimumTimeBetweenMints = 1 days * 365; // Cap on the percentage of totalSupply that can be minted at each inflationary mint uint8 public constant override mintCap = 2; // ICHI V2 to ICHI V1 conversion fee (default is 0%) uint256 public override conversionFee = 0; // Allowance amounts on behalf of others mapping (address => mapping (address => uint96)) internal allowances; // Official record of token balances for each account mapping (address => uint96) internal balances; // A record of each accounts delegate mapping (address => address) public override delegates; // A checkpoint for marking number of votes from a given block struct Checkpoint { uint32 fromBlock; uint96 votes; } // A record of votes checkpoints for each account, by index mapping (address => mapping (uint32 => Checkpoint)) public override checkpoints; // The number of checkpoints for each account mapping (address => uint32) public override numCheckpoints; // The EIP-712 typehash for the contract's domain bytes32 public constant override DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)"); // The EIP-712 typehash for the delegation struct used by the contract bytes32 public constant override DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); // The EIP-712 typehash for the permit struct used by the contract bytes32 public constant override PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); // A record of states for signing / validating signatures mapping (address => uint256) public override nonces; /** * @notice Construct a new ICHI token * @param account The initial account to grant 5 million tokens * @param minter_ The account with minting ability * @param ichi_v1_ ICHI V1 address * @param mintingAllowedAfter_ The timestamp after which inflationary minting may occur */ constructor(address account, address minter_, address ichi_v1_, uint256 mintingAllowedAfter_) { require(mintingAllowedAfter_ >= block.timestamp, "IchiV2.constructor: minting can only begin after deployment"); require(account != NULL_ADDRESS && minter_ != NULL_ADDRESS && ichi_v1_ != NULL_ADDRESS, "IchiV2.constructor: cannot init with zero addresses"); balances[account] = uint96(totalSupply); ichiV1 = ichi_v1_; minter = minter_; mintingAllowedAfter = mintingAllowedAfter_; emit Transfer(NULL_ADDRESS, account, totalSupply); emit MinterChanged(NULL_ADDRESS, minter); } /** * @notice Change the minter address * @param minter_ The address of the new minter */ function setMinter(address minter_) external override { require(msg.sender == minter, "IchiV2.setMinter: only the minter can change the minter address"); require(minter_ != NULL_ADDRESS, "IchiV2.setMinter: cannot use zero address"); emit MinterChanged(minter, minter_); minter = minter_; } /** * @notice Mint new tokens * @param dst The address of the destination account * @param amount The number of tokens to be minted */ function mint(address dst, uint256 amount) external override { require(msg.sender == minter, "IchiV2.mint: only the minter can mint"); require(block.timestamp >= mintingAllowedAfter, "IchiV2.mint: minting not allowed yet"); require(dst != NULL_ADDRESS, "IchiV2.mint: cannot transfer to the zero address"); // record the mint mintingAllowedAfter = block.timestamp.add(minimumTimeBetweenMints); // mint the amount uint96 amount96 = safe96(amount, "IchiV2.mint: amount exceeds 96 bits"); require(amount <= totalSupply.mul(mintCap).div(PERCENT), "IchiV2.mint: exceeded mint cap"); totalSupply = uint256(safe96(totalSupply.add(amount), "IchiV2.mint: totalSupply exceeds 96 bits")); // transfer the amount to the recipient balances[dst] = add96(balances[dst], amount96, "IchiV2.mint: destination balance overflows"); emit Transfer(NULL_ADDRESS, dst, amount); // move delegates _moveDelegates(NULL_ADDRESS, delegates[dst], amount96); } /** * @notice Change the ICHI V2 to ICHI V1 conversion fee * @param fee_ New conversion fee, 0-100% */ function setConversionFee(uint256 fee_) external override { require(fee_ <= 100, "IchiV2.setConversionFee: fee must be <= 100"); require(msg.sender == minter, "IchiV2.setConversionFee: only the minter can change the converson fee"); conversionFee = fee_; emit ConversionFeeChanged(minter, fee_); } /** * @notice Convert ICHI V1 tokens to ICHI V2 tokens * @param v1Amount The number of ICHI V1 tokens to be converted (using 9 decimals representation) */ function convertToV2(uint256 v1Amount) external override { require(v1Amount > 0, "IchiV2.convertToV2: amount must be > 0"); // convert 9 decimals ICHI V1 to 18 decimals ICHI V2 uint256 v2Amount = v1Amount.mul(DECIMALS_DIFF); uint96 v2Amount96 = safe96(v2Amount, "IchiV2.convertToV2: amount exceeds 96 bits"); // transfer ICHI V1 tokens in IERC20(ichiV1).safeTransferFrom(msg.sender, address(this), v1Amount); // increase ICHI V2 totalSupply totalSupply = totalSupply.add(v2Amount); // transfer the amount of ICHI V2 to the recipient balances[msg.sender] = add96(balances[msg.sender], v2Amount96, "IchiV2.convertToV2: transfer amount overflows"); emit ConvertedToV2(msg.sender, v1Amount, v2Amount); emit Transfer(NULL_ADDRESS, msg.sender, v2Amount); // move delegates _moveDelegates(NULL_ADDRESS, delegates[msg.sender], v2Amount96); } /** * @notice Convert ICHI V2 tokens back to ICHI V1 tokens * @param v2Amount The number of ICHI V2 tokens to be converted (using 18 decimals representation) */ function convertToV1(uint256 v2Amount) external override { require(v2Amount > 0, "IchiV2.convertToV1: amount must be > 0"); uint96 v2Amount96 = safe96(v2Amount, "IchiV2.convertToV1: amount exceeds 96 bits"); require(v2Amount96 <= balances[msg.sender], "IchiV2.convertToV1: insufficient V2 balance"); // convert 18 decimals ICHI V2 to 9 decimals ICHI V2 and take off the conversion fee uint256 v1Amount = v2Amount.mul(PERCENT.sub(conversionFee)).div(DECIMALS_DIFF).div(PERCENT); require(v1Amount > 0, "IchiV2.convertToV1: amount is too small"); // decrease ICHI V2 totalSupply totalSupply = totalSupply.sub(v2Amount); // burn the traded amount of ICHI V2 balances[msg.sender] = sub96(balances[msg.sender], v2Amount96, "IchiV2.convertToV1: transfer amount overflows"); // transfer ICHI V1 tokens to the user IERC20(ichiV1).safeTransfer(msg.sender, v1Amount); emit ConvertedToV1(msg.sender, v2Amount96, v1Amount); emit Transfer(msg.sender, NULL_ADDRESS, v2Amount96); // move delegates _moveDelegates(delegates[msg.sender], NULL_ADDRESS, v2Amount96); } /** * @notice Get the number of tokens `spender` is approved to spend on behalf of `account` * @param _owner The address of the account holding the funds * @param _spender The address of the account spending the funds * @return The number of tokens approved */ function allowance(address _owner, address _spender) external view override returns (uint256) { return uint256(allowances[_owner][_spender]); } /** * @notice Approve `spender` to transfer up to `amount` from `src` * @dev This will overwrite the approval amount for `spender` * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve) * @param _spender The address of the account which may transfer tokens * @param _value The number of tokens that are approved (2^256-1 means infinite) * @return Whether or not the approval succeeded */ function approve(address _spender, uint256 _value) external override returns (bool) { uint96 amount; if (_value == uint256(-1)) { amount = uint96(-1); } else { amount = safe96(_value, "IchiV2.approve: amount exceeds 96 bits"); } allowances[msg.sender][_spender] = amount; emit Approval(msg.sender, _spender, uint256(amount)); return true; } /** * @notice Returns the domain separator used in the encoding of the signature for `permit`, as defined by {EIP712}. * @return domain separator */ function DOMAIN_SEPARATOR() public view override returns (bytes32) { return keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), getChainId(), address(this))); } /** * @notice Triggers an approval from owner to spends * @param owner The address to approve from * @param spender The address to be approved * @param rawAmount The number of tokens that are approved (2^256-1 means infinite) * @param deadline The time at which to expire the signature * @param v The recovery byte of the signature * @param r Half of the ECDSA signature pair * @param s Half of the ECDSA signature pair */ function permit(address owner, address spender, uint256 rawAmount, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external override { uint96 amount; if (rawAmount == uint256(-1)) { amount = uint96(-1); } else { amount = safe96(rawAmount, "IchiV2.permit: amount exceeds 96 bits"); } bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, rawAmount, nonces[owner]++, deadline)); bytes32 digest = keccak256(abi.encodePacked("\x19\x01", DOMAIN_SEPARATOR(), structHash)); address signatory = ecrecover(digest, v, r, s); require(signatory != NULL_ADDRESS, "IchiV2.permit: invalid signature"); require(signatory == owner, "IchiV2.permit: unauthorized"); require(block.timestamp <= deadline, "IchiV2.permit: signature expired"); allowances[owner][spender] = amount; emit Approval(owner, spender, uint256(amount)); } /** * @notice Get the number of tokens held by the `account` * @param _owner The address of the account to get the balance of * @return The number of tokens held */ function balanceOf(address _owner) external view override returns (uint256) { return uint256(balances[_owner]); } /** * @notice Transfer `amount` tokens from `msg.sender` to `dst` * @param _to The address of the destination account * @param _value The number of tokens to transfer * @return Whether or not the transfer succeeded */ function transfer(address _to, uint256 _value) external override returns (bool) { uint96 amount = safe96(_value, "IchiV2.transfer: amount exceeds 96 bits"); _transferTokens(msg.sender, _to, amount); return true; } /** * @notice Transfer `amount` tokens from `src` to `dst` * @param _from The address of the source account * @param _to The address of the destination account * @param _value The number of tokens to transfer * @return Whether or not the transfer succeeded */ function transferFrom(address _from, address _to, uint256 _value) external override returns (bool) { address spender = msg.sender; uint96 spenderAllowance = allowances[_from][spender]; uint96 amount96 = safe96(_value, "IchiV2.approve: amount exceeds 96 bits"); if (spender != _from && spenderAllowance != uint96(-1)) { uint96 newAllowance = sub96(spenderAllowance, amount96, "IchiV2.transferFrom: transfer amount exceeds spender allowance"); allowances[_from][spender] = newAllowance; emit Approval(_from, spender, uint256(newAllowance)); } _transferTokens(_from, _to, amount96); return true; } /** * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegatee The address to delegate votes to */ function delegate(address delegatee) public override { return _delegate(msg.sender, delegatee); } /** * @notice Delegates votes from signatory to `delegatee` * @param delegatee The address to delegate votes to * @param nonce The contract state required to match the signature * @param expiry The time at which to expire the signature * @param v The recovery byte of the signature * @param r Half of the ECDSA signature pair * @param s Half of the ECDSA signature pair */ function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) public override { bytes32 structHash = keccak256(abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry)); bytes32 digest = keccak256(abi.encodePacked("\x19\x01", DOMAIN_SEPARATOR(), structHash)); address signatory = ecrecover(digest, v, r, s); require(signatory != NULL_ADDRESS, "IchiV2.delegateBySig: invalid signature"); require(nonce == nonces[signatory]++, "IchiV2.delegateBySig: invalid nonce"); require(block.timestamp <= expiry, "IchiV2.delegateBySig: signature expired"); return _delegate(signatory, delegatee); } /** * @notice Gets the current votes balance for `account` * @param account The address to get votes balance * @return The number of current votes for `account` */ function getCurrentVotes(address account) external view override returns (uint96) { uint32 nCheckpoints = numCheckpoints[account]; return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0; } /** * @notice Determine the prior number of votes for an account as of a block number * @dev Block number must be a finalized block or else this function will revert to prevent misinformation. * @param account The address of the account to check * @param blockNumber The block number to get the vote balance at * @return The number of votes the account had as of the given block */ function getPriorVotes(address account, uint256 blockNumber) public view override returns (uint96) { require(blockNumber < block.number, "IchiV2.getPriorVotes: not yet determined"); uint32 nCheckpoints = numCheckpoints[account]; if (nCheckpoints == 0) { return 0; } // First check most recent balance if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) { return checkpoints[account][nCheckpoints - 1].votes; } // Next check implicit zero balance if (checkpoints[account][0].fromBlock > blockNumber) { return 0; } uint32 lower = 0; uint32 upper = nCheckpoints - 1; while (upper > lower) { uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow Checkpoint memory cp = checkpoints[account][center]; if (cp.fromBlock == blockNumber) { return cp.votes; } else if (cp.fromBlock < blockNumber) { lower = center; } else { upper = center - 1; } } return checkpoints[account][lower].votes; } /** * @notice Delegate votes from `delegator` to `delegatee` * @param delegator The address of the delegator * @param delegatee The address to delegate votes to */ function _delegate(address delegator, address delegatee) internal { address currentDelegate = delegates[delegator]; uint96 delegatorBalance = balances[delegator]; delegates[delegator] = delegatee; emit DelegateChanged(delegator, currentDelegate, delegatee); _moveDelegates(currentDelegate, delegatee, delegatorBalance); } /** * @notice Transfer `amount` tokens from `src` to `dst` * @param src The address of the source account * @param dst The address of the destination account * @param amount The number of tokens to transfer */ function _transferTokens(address src, address dst, uint96 amount) internal { require(src != NULL_ADDRESS, "IchiV2._transferTokens: cannot transfer from the zero address"); require(dst != NULL_ADDRESS, "IchiV2._transferTokens: cannot transfer to the zero address"); balances[src] = sub96(balances[src], amount, "IchiV2._transferTokens: transfer amount exceeds balance"); balances[dst] = add96(balances[dst], amount, "IchiV2._transferTokens: transfer amount overflows"); emit Transfer(src, dst, amount); _moveDelegates(delegates[src], delegates[dst], amount); } /** * @notice Move delegate votes from `delegator` to `delegatee` * @param srcRep The address of the delegator * @param dstRep The address to delegate votes to * @param amount The number of tokens to delegate */ function _moveDelegates(address srcRep, address dstRep, uint96 amount) internal { if (srcRep != dstRep && amount > 0) { if (srcRep != NULL_ADDRESS) { uint32 srcRepNum = numCheckpoints[srcRep]; uint96 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0; uint96 srcRepNew = sub96(srcRepOld, amount, "IchiV2._moveVotes: vote amount underflows"); _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew); } if (dstRep != NULL_ADDRESS) { uint32 dstRepNum = numCheckpoints[dstRep]; uint96 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0; uint96 dstRepNew = add96(dstRepOld, amount, "IchiV2._moveVotes: vote amount overflows"); _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew); } } } /** * @notice Create new votes checkpoint for a `delegatee` * @param delegatee The address of the delegatee * @param nCheckpoints Current number of checkpoints for the `delegatee` * @param oldVotes Old number of votes * @param newVotes New number of votes */ function _writeCheckpoint(address delegatee, uint32 nCheckpoints, uint96 oldVotes, uint96 newVotes) internal { uint32 blockNumber = safe32(block.number, "IchiV2._writeCheckpoint: block number exceeds 32 bits"); if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) { checkpoints[delegatee][nCheckpoints - 1].votes = newVotes; } else { checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes); numCheckpoints[delegatee] = nCheckpoints + 1; } emit DelegateVotesChanged(delegatee, uint256(oldVotes), uint256(newVotes)); } /** * @notice safe conversion to uint32 * @param n number to convert * @param errorMessage error raised during the conversion * @return converted unit32 number */ function safe32(uint256 n, string memory errorMessage) internal pure returns (uint32) { require(n < 2**32, errorMessage); return uint32(n); } /** * @notice safe conversion to uint96 * @param n number to convert * @param errorMessage error raised during the conversion * @return converted unit96 number */ function safe96(uint256 n, string memory errorMessage) internal pure returns (uint96) { require(n < 2**96, errorMessage); return uint96(n); } /** * @notice safe addition for uint96 * @param a number to add * @param b number to add * @param errorMessage error raised during the conversion * @return the result of the addition */ function add96(uint96 a, uint96 b, string memory errorMessage) internal pure returns (uint96) { uint96 c = a + b; require(c >= a, errorMessage); return c; } /** * @notice safe subtraction for uint96 * @param a initial number * @param b number to subtract * @param errorMessage error raised during the conversion * @return the result of the subtraction */ function sub96(uint96 a, uint96 b, string memory errorMessage) internal pure returns (uint96) { require(b <= a, errorMessage); return a - b; } /** * @notice returns the chain ID * @return chain ID */ function getChainId() internal pure returns (uint256) { uint256 chainId; assembly { chainId := chainid() } return chainId; } }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.0 <0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over `owner`'s tokens, * given `owner`'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for `permit`, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; import "./IERC20.sol"; import "../../math/SafeMath.sol"; import "../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.7.6; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/drafts/IERC20Permit.sol"; interface IIchiV2 is IERC20, IERC20Permit { // EIP-20 token name for this token function name() external view returns(string memory); // EIP-20 token symbol for this token function symbol() external view returns(string memory); // EIP-20 token decimals for this token function decimals() external view returns(uint8); // ICHI V1 address function ichiV1() external view returns(address); // Address which may mint inflationary tokens function minter() external view returns(address); // The timestamp after which inflationary minting may occur function mintingAllowedAfter() external view returns(uint256); // Minimum time between inflationary mints function minimumTimeBetweenMints() external view returns(uint32); // Cap on the percentage of totalSupply that can be minted at each inflationary mint function mintCap() external view returns(uint8); // ICHI V2 to ICHI V1 conversion fee (default is 0%) function conversionFee() external view returns(uint256); // A record of each accounts delegate function delegates(address) external view returns(address); // A record of votes checkpoints for each account, by index function checkpoints(address, uint32) external view returns(uint32, uint96); // The number of checkpoints for each account function numCheckpoints(address) external view returns(uint32); // The EIP-712 typehash for the contract's domain function DOMAIN_TYPEHASH() external view returns(bytes32); // The EIP-712 typehash for the delegation struct used by the contract function DELEGATION_TYPEHASH() external view returns(bytes32); // The EIP-712 typehash for the permit struct used by the contract function PERMIT_TYPEHASH() external view returns(bytes32); // An event thats emitted when the minter address is changed event MinterChanged(address minter, address newMinter); // An event thats emitted when an account changes its delegate event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); // An event thats emitted when a delegate account's vote balance changes event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance); // An event thats emitted when ICHI V1 tokens are converted into ICHI V2 tokens event ConvertedToV2(address indexed from, uint256 amountIn, uint256 amountOut); // An event thats emitted when ICHI V2 tokens are converted into ICHI V1 tokens event ConvertedToV1(address indexed from, uint256 amountIn, uint256 amountOut); // An event thats emitted when the conversion fee is changed event ConversionFeeChanged(address minter, uint256 fee); /** * @notice Change the minter address * @param minter_ The address of the new minter */ function setMinter(address minter_) external; /** * @notice Mint new tokens * @param dst The address of the destination account * @param rawAmount The number of tokens to be minted */ function mint(address dst, uint256 rawAmount) external; /** * @notice Change the ICHI V2 to ICHI V1 conversion fee * @param fee_ New conversion fee */ function setConversionFee(uint256 fee_) external; /** * @notice Convert ICHI V1 tokens to ICHI V2 tokens * @param rawAmount The number of ICHI V1 tokens to be converted (using 9 decimals representation) */ function convertToV2(uint256 rawAmount) external; /** * @notice Convert ICHI V2 tokens back to ICHI V1 tokens * @param rawAmount The number of ICHI V2 tokens to be converted (using 18 decimals representation) */ function convertToV1(uint256 rawAmount) external; /** * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegatee The address to delegate votes to */ function delegate(address delegatee) external; /** * @notice Delegates votes from signatory to `delegatee` * @param delegatee The address to delegate votes to * @param nonce The contract state required to match the signature * @param expiry The time at which to expire the signature * @param v The recovery byte of the signature * @param r Half of the ECDSA signature pair * @param s Half of the ECDSA signature pair */ function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external; /** * @notice Gets the current votes balance for `account` * @param account The address to get votes balance * @return The number of current votes for `account` */ function getCurrentVotes(address account) external view returns (uint96); /** * @notice Determine the prior number of votes for an account as of a block number * @dev Block number must be a finalized block or else this function will revert to prevent misinformation. * @param account The address of the account to check * @param blockNumber The block number to get the vote balance at * @return The number of votes the account had as of the given block */ function getPriorVotes(address account, uint256 blockNumber) external view returns (uint96); }
{ "evmVersion": "istanbul", "libraries": {}, "metadata": { "bytecodeHash": "ipfs", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 200 }, "remappings": [], "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
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[{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"address","name":"minter_","type":"address"},{"internalType":"address","name":"ichi_v1_","type":"address"},{"internalType":"uint256","name":"mintingAllowedAfter_","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"minter","type":"address"},{"indexed":false,"internalType":"uint256","name":"fee","type":"uint256"}],"name":"ConversionFeeChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountIn","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountOut","type":"uint256"}],"name":"ConvertedToV1","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountIn","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountOut","type":"uint256"}],"name":"ConvertedToV2","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"minter","type":"address"},{"indexed":false,"internalType":"address","name":"newMinter","type":"address"}],"name":"MinterChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DELEGATION_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint32","name":"","type":"uint32"}],"name":"checkpoints","outputs":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint96","name":"votes","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"conversionFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"v2Amount","type":"uint256"}],"name":"convertToV1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"v1Amount","type":"uint256"}],"name":"convertToV2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getCurrentVotes","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPriorVotes","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ichiV1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minimumTimeBetweenMints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"mintCap","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mintingAllowedAfter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"rawAmount","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"fee_","type":"uint256"}],"name":"setConversionFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"minter_","type":"address"}],"name":"setMinter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000094a5980d5634533551dcb7108322f6c4f2a80e6b00000000000000000000000094a5980d5634533551dcb7108322f6c4f2a80e6b000000000000000000000000903bef1736cddf2a537176cf3c64579c3867a881000000000000000000000000000000000000000000000000000000006955b900
-----Decoded View---------------
Arg [0] : account (address): 0x94A5980d5634533551dcB7108322f6C4f2a80E6B
Arg [1] : minter_ (address): 0x94A5980d5634533551dcB7108322f6C4f2a80E6B
Arg [2] : ichi_v1_ (address): 0x903bEF1736CDdf2A537176cf3C64579C3867A881
Arg [3] : mintingAllowedAfter_ (uint256): 1767225600
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 00000000000000000000000094a5980d5634533551dcb7108322f6c4f2a80e6b
Arg [1] : 00000000000000000000000094a5980d5634533551dcb7108322f6c4f2a80e6b
Arg [2] : 000000000000000000000000903bef1736cddf2a537176cf3c64579c3867a881
Arg [3] : 000000000000000000000000000000000000000000000000000000006955b900
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