import { Keypair } from "@solana/web3.js";
export interface PredictionKeyBundle {
    withdrawalId: Uint8Array;
    withdrawalIdHex: string;
    ephemeral: Keypair;
    claimantPublicKey: string;
    claimantSecretKey: string;
}
export declare function derivePredictionEphemeralKeypair(spendingKey: Uint8Array, nonce: number): Keypair;
export declare function derivePredictionWithdrawalId(spendingKey: Uint8Array, nonce: number): Uint8Array;
export declare function predictionWithdrawalIdToHex(withdrawalId: Uint8Array): string;
export declare function predictionWithdrawalIdFromHex(value: string): Uint8Array;
/** Derive every client-held key field needed across a prediction lifecycle. */
export declare function derivePredictionKeyBundle(spendingKey: Uint8Array, nonce: number): PredictionKeyBundle;