export type ProvenanceAgentType = 'person' | 'software_agent' | 'organization';
export interface ProvenanceEntry {
    entityId: string;
    entityType: string;
    activityId: string;
    agentId: string;
    agentType?: ProvenanceAgentType;
    role?: string;
    sourceDocument?: string;
    timestamp: string;
    confidence?: number;
    checksum?: string;
    sequenceId?: number;
    previousChecksum?: string;
    invalidated?: boolean;
    invalidatedAt?: string;
    invalidatedBy?: string;
    invalidatedReason?: string;
    metadata?: Record<string, unknown>;
}
export interface ProvenanceStoreOptions {
    provenanceDir?: string;
}
export interface ChainVerification {
    valid: boolean;
    brokenAt?: string;
    detail?: string;
}
export declare class ProvenanceStore {
    private provenanceDir;
    private cache;
    constructor(options?: ProvenanceStoreOptions);
    track(entry: Omit<ProvenanceEntry, 'checksum' | 'sequenceId' | 'previousChecksum'>): Promise<ProvenanceEntry>;
    get(entityId: string): Promise<ProvenanceEntry | undefined>;
    recent(count?: number): Promise<ProvenanceEntry[]>;
    count(): number;
    invalidate(entityId: string, by: string, reason: string): Promise<void>;
    verifyChain(): Promise<ChainVerification>;
    private loadFromDisk;
    private computeChecksum;
    private nextSequenceId;
    private lastEntryBySequence;
    private loadCache;
    private sanitizeId;
    private ensureDir;
}
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