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    Contract

    0x25888f3b78f4Ad75A377f6009130d3Cbb128Ffd8

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    Latest 1 internal transaction

    Parent Transaction Hash Block Age From To Amount
    44897592024-11-17 11:12:5294 days ago1731841972
     Contract Creation
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    Similar Match Source Code
    This contract matches the deployed Bytecode of the Source Code for Contract 0x617a2CA0...C202893E5
    The constructor portion of the code might be different and could alter the actual behaviour of the contract

    Contract Name:
    DataStorageOperator

    Compiler Version
    v0.7.6+commit.7338295f

    Optimization Enabled:
    Yes with 0 runs

    Other Settings:
    default evmVersion
    File 1 of 8 : DataStorageOperator.sol
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    // SPDX-License-Identifier: BUSL-1.1
    pragma solidity =0.7.6;
    pragma abicoder v2;
    import './interfaces/IAlgebraFactory.sol';
    import './interfaces/IDataStorageOperator.sol';
    import './libraries/DataStorage.sol';
    import './libraries/Sqrt.sol';
    import './libraries/AdaptiveFee.sol';
    import './libraries/Constants.sol';
    /// @title Algebra timepoints data operator
    /// @notice This contract stores timepoints and calculates adaptive fee and statistical averages
    contract DataStorageOperator is IDataStorageOperator {
    uint256 constant UINT16_MODULO = 65536;
    uint128 constant MAX_VOLUME_PER_LIQUIDITY = 100000 << 64; // maximum meaningful ratio of volume to liquidity
    using DataStorage for DataStorage.Timepoint[UINT16_MODULO];
    DataStorage.Timepoint[UINT16_MODULO] public override timepoints;
    AdaptiveFee.Configuration public feeConfigZto;
    AdaptiveFee.Configuration public feeConfigOtz;
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    File 2 of 8 : IAlgebraFactory.sol
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    // SPDX-License-Identifier: GPL-2.0-or-later
    pragma solidity >=0.5.0;
    /**
    * @title The interface for the Algebra Factory
    * @dev Credit to Uniswap Labs under GPL-2.0-or-later license:
    * https://github.com/Uniswap/v3-core/tree/main/contracts/interfaces
    */
    interface IAlgebraFactory {
    /**
    * @notice Emitted when the owner of the factory is changed
    * @param newOwner The owner after the owner was changed
    */
    event Owner(address indexed newOwner);
    /**
    * @notice Emitted when the vault address is changed
    * @param newVaultAddress The vault address after the address was changed
    */
    event VaultAddress(address indexed newVaultAddress);
    /**
    * @notice Emitted when a pool is created
    * @param token0 The first token of the pool by address sort order
    * @param token1 The second token of the pool by address sort order
    * @param pool The address of the created pool
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    File 3 of 8 : IDataStorageOperator.sol
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    // SPDX-License-Identifier: GPL-2.0-or-later
    pragma solidity >=0.5.0;
    pragma abicoder v2;
    import '../libraries/AdaptiveFee.sol';
    interface IDataStorageOperator {
    event FeeConfiguration(bool zto, AdaptiveFee.Configuration feeConfig);
    /**
    * @notice Returns data belonging to a certain timepoint
    * @param index The index of timepoint in the array
    * @dev There is more convenient function to fetch a timepoint: getTimepoints(). Which requires not an index but seconds
    * @return initialized Whether the timepoint has been initialized and the values are safe to use,
    * blockTimestamp The timestamp of the observation,
    * tickCumulative The tick multiplied by seconds elapsed for the life of the pool as of the timepoint timestamp,
    * secondsPerLiquidityCumulative The seconds per in range liquidity for the life of the pool as of the timepoint timestamp,
    * volatilityCumulative Cumulative standard deviation for the life of the pool as of the timepoint timestamp,
    * averageTick Time-weighted average tick,
    * volumePerLiquidityCumulative Cumulative swap volume per liquidity for the life of the pool as of the timepoint timestamp
    */
    function timepoints(uint256 index)
    external
    view
    returns (
    bool initialized,
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    File 4 of 8 : AdaptiveFee.sol
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    // SPDX-License-Identifier: BUSL-1.1
    pragma solidity =0.7.6;
    import './Constants.sol';
    /// @title AdaptiveFee
    /// @notice Calculates fee based on combination of sigmoids
    library AdaptiveFee {
    // alpha1 + alpha2 + baseFee must be <= type(uint16).max
    struct Configuration {
    uint16 alpha1; // max value of the first sigmoid
    uint16 alpha2; // max value of the second sigmoid
    uint32 beta1; // shift along the x-axis for the first sigmoid
    uint32 beta2; // shift along the x-axis for the second sigmoid
    uint16 gamma1; // horizontal stretch factor for the first sigmoid
    uint16 gamma2; // horizontal stretch factor for the second sigmoid
    uint32 volumeBeta; // shift along the x-axis for the outer volume-sigmoid
    uint16 volumeGamma; // horizontal stretch factor the outer volume-sigmoid
    uint16 baseFee; // minimum possible fee
    }
    /// @notice Calculates fee based on formula:
    /// baseFee + sigmoidVolume(sigmoid1(volatility, volumePerLiquidity) + sigmoid2(volatility, volumePerLiquidity))
    /// maximum value capped by baseFee + alpha1 + alpha2
    function getFee(
    uint88 volatility,
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    File 5 of 8 : Constants.sol
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    // SPDX-License-Identifier: GPL-2.0-or-later
    pragma solidity =0.7.6;
    library Constants {
    uint8 internal constant RESOLUTION = 96;
    uint256 internal constant Q96 = 0x1000000000000000000000000;
    uint256 internal constant Q128 = 0x100000000000000000000000000000000;
    // fee value in hundredths of a bip, i.e. 1e-6
    uint16 internal constant BASE_FEE = 100;
    int24 internal constant MAX_TICK_SPACING = 500;
    // max(uint128) / (MAX_TICK - MIN_TICK)
    uint128 internal constant MAX_LIQUIDITY_PER_TICK = 191757638537527648490752896198553;
    uint32 internal constant MAX_LIQUIDITY_COOLDOWN = 1 days;
    uint8 internal constant MAX_COMMUNITY_FEE = 250;
    uint256 internal constant COMMUNITY_FEE_DENOMINATOR = 1000;
    }
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    File 6 of 8 : DataStorage.sol
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    // SPDX-License-Identifier: BUSL-1.1
    pragma solidity =0.7.6;
    import './FullMath.sol';
    /// @title DataStorage
    /// @notice Provides price, liquidity, volatility data useful for a wide variety of system designs
    /// @dev Instances of stored dataStorage data, "timepoints", are collected in the dataStorage array
    /// Timepoints are overwritten when the full length of the dataStorage array is populated.
    /// The most recent timepoint is available by passing 0 to getSingleTimepoint()
    library DataStorage {
    uint32 public constant WINDOW = 1 days;
    uint256 private constant UINT16_MODULO = 65536;
    struct Timepoint {
    bool initialized; // whether or not the timepoint is initialized
    uint32 blockTimestamp; // the block timestamp of the timepoint
    int56 tickCumulative; // the tick accumulator, i.e. tick * time elapsed since the pool was first initialized
    uint160 secondsPerLiquidityCumulative; // the seconds per liquidity since the pool was first initialized
    uint88 volatilityCumulative; // the volatility accumulator; overflow after ~34800 years is desired :)
    int24 averageTick; // average tick at this blockTimestamp
    uint144 volumePerLiquidityCumulative; // the gmean(volumes)/liquidity accumulator
    }
    /// @notice Calculates volatility between two sequential timepoints with resampling to 1 sec frequency
    /// @param dt Timedelta between timepoints, must be within uint32 range
    /// @param tick0 The tick at the left timepoint, must be within int24 range
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    File 7 of 8 : FullMath.sol
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    // SPDX-License-Identifier: MIT
    pragma solidity ^0.4.0 || ^0.5.0 || ^0.6.0 || ^0.7.0;
    /// @title Contains 512-bit math functions
    /// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision
    /// @dev Handles "phantom overflow" i.e., allows multiplication and division where an intermediate value overflows 256 bits
    library FullMath {
    /// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
    /// @param a The multiplicand
    /// @param b The multiplier
    /// @param denominator The divisor
    /// @return result The 256-bit result
    /// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv
    function mulDiv(
    uint256 a,
    uint256 b,
    uint256 denominator
    ) internal pure returns (uint256 result) {
    // 512-bit multiply [prod1 prod0] = a * b
    // Compute the product mod 2**256 and mod 2**256 - 1
    // then use the Chinese Remainder Theorem to reconstruct
    // the 512 bit result. The result is stored in two 256
    // variables such that product = prod1 * 2**256 + prod0
    uint256 prod0 = a * b; // Least significant 256 bits of the product
    uint256 prod1; // Most significant 256 bits of the product
    assembly {
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    File 8 of 8 : Sqrt.sol
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    // SPDX-License-Identifier: GPL-3.0-or-later
    pragma solidity ^0.5.0 || ^0.6.0 || ^0.7.0 || ^0.8.0;
    library Sqrt {
    /// @notice Gets the square root of the absolute value of the parameter
    function sqrtAbs(int256 _x) internal pure returns (uint256 result) {
    // get abs value
    int256 mask = _x >> (256 - 1);
    uint256 x = uint256((_x ^ mask) - mask);
    if (x == 0) result = 0;
    else {
    uint256 xx = x;
    uint256 r = 1;
    if (xx >= 0x100000000000000000000000000000000) {
    xx >>= 128;
    r <<= 64;
    }
    if (xx >= 0x10000000000000000) {
    xx >>= 64;
    r <<= 32;
    }
    if (xx >= 0x100000000) {
    xx >>= 32;
    r <<= 16;
    }
    if (xx >= 0x10000) {
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    Settings
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    {
    "optimizer": {
    "enabled": true,
    "runs": 0
    },
    "metadata": {
    "bytecodeHash": "none",
    "useLiteralContent": true
    },
    "outputSelection": {
    "*": {
    "*": [
    "evm.bytecode",
    "evm.deployedBytecode",
    "devdoc",
    "userdoc",
    "metadata",
    "abi"
    ]
    }
    },
    "libraries": {}
    }
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    Contract Security Audit

    Contract ABI

    [{"inputs":[{"internalType":"address","name":"_pool","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"zto","type":"bool"},{"components":[{"internalType":"uint16","name":"alpha1","type":"uint16"},{"internalType":"uint16","name":"alpha2","type":"uint16"},{"internalType":"uint32","name":"beta1","type":"uint32"},{"internalType":"uint32","name":"beta2","type":"uint32"},{"internalType":"uint16","name":"gamma1","type":"uint16"},{"internalType":"uint16","name":"gamma2","type":"uint16"},{"internalType":"uint32","name":"volumeBeta","type":"uint32"},{"internalType":"uint16","name":"volumeGamma","type":"uint16"},{"internalType":"uint16","name":"baseFee","type":"uint16"}],"indexed":false,"internalType":"struct AdaptiveFee.Configuration","name":"feeConfig","type":"tuple"}],"name":"FeeConfiguration","type":"event"},{"inputs":[{"internalType":"uint128","name":"liquidity","type":"uint128"},{"internalType":"int256","name":"amount0","type":"int256"},{"internalType":"int256","name":"amount1","type":"int256"}],"name":"calculateVolumePerLiquidity","outputs":[{"internalType":"uint128","name":"volumePerLiquidity","type":"uint128"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bool","name":"zto","type":"bool"},{"components":[{"internalType":"uint16","name":"alpha1","type":"uint16"},{"internalType":"uint16","name":"alpha2","type":"uint16"},{"internalType":"uint32","name":"beta1","type":"uint32"},{"internalType":"uint32","name":"beta2","type":"uint32"},{"internalType":"uint16","name":"gamma1","type":"uint16"},{"internalType":"uint16","name":"gamma2","type":"uint16"},{"internalType":"uint32","name":"volumeBeta","type":"uint32"},{"internalType":"uint16","name":"volumeGamma","type":"uint16"},{"internalType":"uint16","name":"baseFee","type":"uint16"}],"internalType":"struct AdaptiveFee.Configuration","name":"_feeConfig","type":"tuple"}],"name":"changeFeeConfiguration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"feeConfigOtz","outputs":[{"internalType":"uint16","name":"alpha1","type":"uint16"},{"internalType":"uint16","name":"alpha2","type":"uint16"},{"internalType":"uint32","name":"beta1","type":"uint32"},{"internalType":"uint32","name":"beta2","type":"uint32"},{"internalType":"uint16","name":"gamma1","type":"uint16"},{"internalType":"uint16","name":"gamma2","type":"uint16"},{"internalType":"uint32","name":"volumeBeta","type":"uint32"},{"internalType":"uint16","name":"volumeGamma","type":"uint16"},{"internalType":"uint16","name":"baseFee","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"feeConfigZto","outputs":[{"internalType":"uint16","name":"alpha1","type":"uint16"},{"internalType":"uint16","name":"alpha2","type":"uint16"},{"internalType":"uint32","name":"beta1","type":"uint32"},{"internalType":"uint32","name":"beta2","type":"uint32"},{"internalType":"uint16","name":"gamma1","type":"uint16"},{"internalType":"uint16","name":"gamma2","type":"uint16"},{"internalType":"uint32","name":"volumeBeta","type":"uint32"},{"internalType":"uint16","name":"volumeGamma","type":"uint16"},{"internalType":"uint16","name":"baseFee","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"time","type":"uint32"},{"internalType":"int24","name":"tick","type":"int24"},{"internalType":"uint16","name":"index","type":"uint16"},{"internalType":"uint128","name":"liquidity","type":"uint128"}],"name":"getAverages","outputs":[{"internalType":"uint112","name":"TWVolatilityAverage","type":"uint112"},{"internalType":"uint256","name":"TWVolumePerLiqAverage","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"_time","type":"uint32"},{"internalType":"int24","name":"_tick","type":"int24"},{"internalType":"uint16","name":"_index","type":"uint16"},{"internalType":"uint128","name":"_liquidity","type":"uint128"}],"name":"getFees","outputs":[{"internalType":"uint16","name":"feeZto","type":"uint16"},{"internalType":"uint16","name":"feeOtz","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"time","type":"uint32"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"},{"internalType":"int24","name":"tick","type":"int24"},{"internalType":"uint16","name":"index","type":"uint16"},{"internalType":"uint128","name":"liquidity","type":"uint128"}],"name":"getSingleTimepoint","outputs":[{"internalType":"int56","name":"tickCumulative","type":"int56"},{"internalType":"uint160","name":"secondsPerLiquidityCumulative","type":"uint160"},{"internalType":"uint112","name":"volatilityCumulative","type":"uint112"},{"internalType":"uint256","name":"volumePerAvgLiquidity","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"time","type":"uint32"},{"internalType":"uint32[]","name":"secondsAgos","type":"uint32[]"},{"internalType":"int24","name":"tick","type":"int24"},{"internalType":"uint16","name":"index","type":"uint16"},{"internalType":"uint128","name":"liquidity","type":"uint128"}],"name":"getTimepoints","outputs":[{"internalType":"int56[]","name":"tickCumulatives","type":"int56[]"},{"internalType":"uint160[]","name":"secondsPerLiquidityCumulatives","type":"uint160[]"},{"internalType":"uint112[]","name":"volatilityCumulatives","type":"uint112[]"},{"internalType":"uint256[]","name":"volumePerAvgLiquiditys","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"time","type":"uint32"},{"internalType":"int24","name":"tick","type":"int24"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"timepoints","outputs":[{"internalType":"bool","name":"initialized","type":"bool"},{"internalType":"uint32","name":"blockTimestamp","type":"uint32"},{"internalType":"int56","name":"tickCumulative","type":"int56"},{"internalType":"uint160","name":"secondsPerLiquidityCumulative","type":"uint160"},{"internalType":"uint88","name":"volatilityCumulative","type":"uint88"},{"internalType":"int24","name":"averageTick","type":"int24"},{"internalType":"uint144","name":"volumePerLiquidityCumulative","type":"uint144"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"window","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint16","name":"index","type":"uint16"},{"internalType":"uint32","name":"blockTimestamp","type":"uint32"},{"internalType":"int24","name":"tick","type":"int24"},{"internalType":"uint128","name":"liquidity","type":"uint128"},{"internalType":"uint128","name":"volumePerLiquidity","type":"uint128"}],"name":"write","outputs":[{"internalType":"uint16","name":"indexUpdated","type":"uint16"}],"stateMutability":"nonpayable","type":"function"}]

    Deployed Bytecode

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    A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.