export type ProcessOwnerToken = {
    version: 'legacy';
    pid: number;
    issuedAtMs: number;
    nonce: string;
} | {
    version: 'v2';
    pid: number;
    issuedAtMs: number;
    nonce: string;
    processStartHash: string;
} | {
    version: 'v3';
    pid: number;
    issuedAtMs: number;
    nonce: string;
    processStartHash: string;
};
export declare function parseProcessOwnerToken(value: string): ProcessOwnerToken | null;
export declare function hashProcessStartIdentity(identity: string): string;
export declare function hashHistoricalProcessStartIdentity(identity: string): string;
export declare function formatProcessOwnerToken(input: {
    pid: number;
    issuedAtMs: number;
    nonce: string;
    processStartIdentity: string | null;
}): string;
export declare function readHistoricalProcessStartIdentity(pid: number): Promise<string | null>;
export declare function readProcessStartIdentity(pid: number): Promise<string | null>;
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