Solidly allows low cost, near 0 slippage trades on uncorrelated or tightly correlated assets. The protocol incentivizes fees instead of liquidity. Liquidity providers (LPs) are given incentives in the form of token, the amount received is calculated as follows;

• 100% of weekly distribution weighted on votes from ve-token holders

The above is distributed to the gauge (see below), however LPs will earn between 40% and 100% based on their own ve-token balance.

LPs with 0 ve* balance, will earn a maximum of 40%.

token

TBD

ve-token

Vested Escrow (ve), this is the core voting mechanism of the system, used by BaseV1Factory for gauge rewards and gauge voting.

This is based off of ve(3,3) as proposed here

• deposit_for deposits on behalf of
• emit Transfer to allow compatibility with third party explorers
• balance is moved to tokenId instead of address
• Locks are unique as NFTs, and not on a per address basis

function balanceOfAtTime(address) external returns (uint)

• balanceOfAtTime will accumulate the total balance based on the amount of underlying NFTs (to a maximum of 1024 held tokens)

BaseV1Pair

Base V1 pair is the base pair, referred to as a pool, it holds two (2) closely correlated assets (example MIM-UST) if a stable pool or two (2) uncorrelated assets (example FTM-SPELL) if not a stable pool, it uses the standard UniswapV2Pair interface for UI & analytics compatibility.

function mint(address to) external returns (uint liquidity)
function burn(address to) external returns (uint amount0, uint amount1)
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external

Functions should not be referenced directly, should be interacted with via the BaseV1Router

Fees are not accrued in the base pair themselves, but are transfered to BaseV1Fees which has a 1:1 relationship with BaseV1Pair

BaseV1Factory

Base V1 factory allows for the creation of pools via function createPair(address tokenA, address tokenB, bool stable) external returns (address pair)

Anyone can create a pool permissionlessly.

BaseV1Router

Base V1 router is a wrapper contract and the default entry point into Stable V1 pools.

function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external ensure(deadline) returns (uint amountA, uint amountB, uint liquidity)

function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) public ensure(deadline) returns (uint amountA, uint amountB)

function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external ensure(deadline) returns (uint[] memory amounts)

Gauge

Gauges distribute arbitrary token(s) rewards to BaseV1Pair LPs based on voting weights as defined by ve voters.

Arbitrary rewards can be added permissionlessly via function notifyRewardAmount(address token, uint amount) external

Bribe

Gauge bribes are natively supported by the protocol, Bribes inherit from Gauges and are automatically adjusted on votes.

Users that voted can claim their bribes via calling function getReward(address token) public

Fees accrued by Gauges are distributed to Bribes

GaugeV1Factory

Gauge factory permissionlessly creates gauges for pools created by StableV1Factory. Further it handles voting for 60% of the incentives to pools.

function vote(address[] calldata _poolVote, uint[] calldata _weights) external
function distribute(address token) external