/**
 * Converts a UNIX timestamp (seconds) to a ZEUS hash.
 * @param unixTime UNIX timestamp in seconds.
 * @returns ZEUS hash equivalent.
 */
export declare function unixToZeus(unixTime: number): Promise<string>;
/**
 * Converts a ZEUS time hash back to a readable ISO timestamp.
 * NOTE: One-way hashing means original timestamp cannot be reconstructed.
 * @param zeusHash ZEUS time hash.
 * @returns An estimated corresponding UNIX timestamp.
 */
export declare function zeusToUnix(zeusHash: string): number;