At the source, they sign their prices. If a source isn't willing to sign, you'd have to trust proxy signers to sign the price for the source. Reporters read fro

At the source, they sign their prices. If a source isn't willing to sign, you'd have to trust proxy signers to sign the price for the source. Reporters read from the signers (proxy or the original), sort the prices, and try to write them on-chain. You can see an overview of the entire system here: https://docsend.com/view/83g3mnp https://docsend.com/view/83g3mnp