export declare class CodexPaginatedAnswerProofInvalidatedError extends Error {
    constructor(message: string);
}
export interface CodexPaginatedAnswerProofAnchor {
    path: string;
    device: number;
    inode: number;
    offsetBytes: number;
    headerHash: string;
    lastOrdinal: number;
    threadId: string;
    turnId: string;
    itemId: string;
}
/** Freeze a canonical writer boundary before sending an answer, never searching old history. */
export declare function captureCodexPaginatedAnswerProof(input: {
    codexHome: string;
    rolloutPath: string;
    threadId: string;
    turnId: string;
    itemId: string;
}): CodexPaginatedAnswerProofAnchor;
export declare function readCodexPaginatedAnswerProof(anchor: CodexPaginatedAnswerProofAnchor, answers: Record<string, {
    answers: string[];
}>): "pending" | "matched" | "different";