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papers/lux-oracle-infrastructure/sections/05-cross-chain-oracle-coordination.tex
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\section{Cross-Chain Oracle Coordination}
\subsection{Bridge Integration with M-Chain}
Lux's M-Chain (Meta Chain) coordinates oracle data across multiple chains:
\begin{figure}[h]
\centering
\begin{tikzpicture}[
node distance=2cm,
chain/.style={rectangle, draw, minimum width=2cm, minimum height=1cm},
oracle/.style={ellipse, draw, minimum width=1.5cm},
arrow/.style={->, >=stealth, thick}
]
% Nodes
\node[oracle] (pyth) {Pyth};
\node[oracle, right of=pyth] (chainlink) {Chainlink};
\node[oracle, right of=chainlink] (ai) {AI Oracle};
\node[chain, below of=chainlink] (mchain) {M-Chain};
\node[chain, below left of=mchain] (cchain) {C-Chain};
\node[chain, below of=mchain] (xchain) {X-Chain};
\node[chain, below right of=mchain] (pchain) {P-Chain};
% Arrows
\draw[arrow] (pyth) -- (mchain);
\draw[arrow] (chainlink) -- (mchain);
\draw[arrow] (ai) -- (mchain);
\draw[arrow] (mchain) -- (cchain);
\draw[arrow] (mchain) -- (xchain);
\draw[arrow] (mchain) -- (pchain);
\end{tikzpicture}
\caption{Cross-chain oracle coordination architecture}
\end{figure}
\subsection{Cross-Chain Price Consistency}
Ensuring price consistency across chains through consensus mechanisms:
\begin{equation}
\text{Consistency Score} = 1 - \frac{\text{max}(|P_i - P_j|)}{\text{avg}(P_i, P_j)} \quad \forall i,j \in \text{chains}
\end{equation}
\subsection{Warp Messaging for Oracle Updates}
Lux's Warp messaging protocol enables efficient cross-chain oracle updates:
\begin{lstlisting}[caption={Warp Oracle Message Structure}]
struct WarpOracleMessage {
uint256 chainId;
address token;
uint256 price;
uint256 timestamp;
bytes32 merkleRoot;
bytes signatures;
}
function verifyWarpMessage(
WarpOracleMessage memory message
) public view returns (bool) {
bytes32 messageHash = keccak256(abi.encode(
message.chainId,
message.token,
message.price,
message.timestamp
));
return verifySignatures(
messageHash,
message.signatures,
requiredSigners
);
}
\end{lstlisting}