数字资产架构图

// SPDX-License-Identifier: MIT
// @author  Digital Asset Platform Team
// @audit   Secured by OpenZeppelin Wizard + custom access control

interface IDigitalAssetOracle {
    /**
     * @notice Get ERC-721 NFT floor price
     * @param collection NFT contract address
     * @param tokenId Optional token ID for specific token
     * @return price Price in USD (18 decimals)
     * @return confidence Confidence score (0-10000, basis points)
     * @return timestamp Last update block timestamp
     */
    function getNFTFloorPrice(
        address collection,
        uint256 tokenId
    ) external view returns (
        uint256 price,
        uint256 confidence,
        uint256 timestamp
    );

    /**
     * @notice Get ERC-1400 RWA net asset value
     * @param asset RWA token contract address
     * @return nav Net Asset Value per share
     * @return yieldAccrued Accumulated yield (accrued interest)
     * @return timestamp Last NAV update timestamp
     */
    function getRWANAV(
        address asset
    ) external view returns (
        uint256 nav,
        uint256 yieldAccrued,
        uint256 timestamp
    );

    /**
     * @notice Batch update prices with BLS aggregated signatures
     * @param data Encoded price update data
     * @param aggregationProof BLS signature aggregation proof
     */
    function batchUpdatePrices(
        bytes calldata data,
        BLSProof calldata aggregationProof
    ) external onlyRole(ORACLE_UPDATER_ROLE);

    /**
     * @notice Get portfolio VaR (Value at Risk)
     * @param portfolio Portfolio contract address
     * @param confidenceLevel 9500 = 95% confidence
     */
    function getPortfolioVaR(
        address portfolio,
        uint16 confidenceLevel
    ) external view returns (int256 varAmount);
}