ForTube V3 will once again upgrade and optimize the oracle system, using a combination of decentralized oracles and self-feeding. The mainstream currencies use decentralized oracles to provide quotations, including cooperation with well-known oracles projects such as ChainLink and Band. For other currencies that the decentralized oracle does not provide quotations, it uses a multi-node cluster to feed its own prices, and applies multiple algorithms to reduce the quotation deviation of the price data source, more accurately identify and eliminate any abnormal quotations, and ensure the accuracy and timeliness of the price feeds. We will upgrade the price feed contract, introduce a price balance protection mechanism, and conduct comprehensive identification and verification of quotations in all dimensions.