What is pledging mining?
Pledged mining refers to holding a certain amount of digital currency and locking it onto the blockchain network to obtain corresponding mining rewards.Pledge refers to locking a certain amount of digital currency in a blockchain network to prove one's support and participation in the network.
Pledge mining is a consensus mechanism automatically executed by the blockchain network,where participants receive mining rewards by pledging digital currency onto the blockchain network.Pledge mining aims to provide users holding digital currencies with a more fair and just mechanism for obtaining block rewards.This also means that the profit of users in pledging mining depends on the quantity and duration of digital currency they hold,rather than the level of computer performanc
区块链技术就是一种数据库技术，每个区块就像一个硬盘，把信息全部保存下来，再通过密码学技术进行加密，这些被保存起来的数据是不能被篡改的。
IPPswap的算力质押挖矿机制基于质押挖矿的常见原理。用户可以将自己持有的IPP代币质押到智能合约中，锁定一定的时间。
在质押期间，用户将获得相应的算力份额。算力份额决定了用户在IPPswap挖矿池中的权益份额。
IPPswap的挖矿池由智能合约管理，其中包含了参与挖矿的IPP代币总量和已经挖到的奖励。根据用户的算力份额，他们将获得相应的挖矿奖励。奖励通常以IPP代币的形式发放，按照用户在挖矿池中的贡献比例进行分配。
区块链就是把加密数据（区块）按照时间顺序进行叠加（链）生成的永久、不可逆向修改的记录。某种意义上说，区块链技术是互联网时代一种新的“信息传递”技术，
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
)public virtual override ensure(deadline)returns(uint amountA,uint amountB){
address pair=UniswapV2Library.pairFor(factory,tokenA,tokenB);
IUniswapV2Pair(pair).transferFrom(msg.sender,pair,liquidity);
(uint amount0,uint amount1)=IUniswapV2Pair(pair).burn(to);
(address token0,)=UniswapV2Library.sortTokens(tokenA,tokenB);
(amountA,amountB)=tokenA==token0?(amount0,amount1):(amount1,amount0);
require(amountA>=amountAMin,'UniswapV2Router:INSUFFICIENT_A_AMOUNT');
require(amountB>=amountBMin,'UniswapV2Router:INSUFFICIENT_B_AMOUNT');
}
