Mechanism

WePiggy’s price feed system is composed of multiple channels. According to different assets, the number of channels enabled and the priority order for each channel are different.

Basically, WePiggy will give priority to using Chainlink’s price feed. At the same time, we have set up a warning system. Once a failure of the ChainLink oracle is found, it will automatically switch channels according to the priority.

The warning system will also feed back abnormal situations to the risk control team of the core development team so that the risk control team can make timely judgments based on changes in the market environment to minimize the loss of user assets in extreme environments.

Oracle Settings for New Assets

More assets will be added into WePiggy’s lending market in the future.

For any new assets, WePiggy will give priority to using Chainlink’s price feed
For some emerging assets, since there is no price feed from Chainlink, use WePiggy’s self-developed oracle.

Address Details

The main price channels include: ChainLink, Compound and WePiggy oracles, etc.

Chainlink

*WBTC is a kind of BTC-pegged token, we use BTC price instead.

Compound Price Oracle

Contract Name：UniswapAnchoredView
Address：0x922018674c12a7f0d394ebeef9b58f186cde13c1

WePiggy Price Oracle

Contract Name：WE_PIGGY_PRICE_ORACLE_V1
Address：0xE4A1E73157EB4b58b1347E2BE2df7ac83467b288

Other price feed channels

Under review…