export declare const ANCHOR_SIG_DOMAIN = "NOA-Federation-Anchor-v0.1-sig";
export interface AnchorSig {
    alg: "ed25519";
    kid: string;
    value: string;
}
export interface Anchor {
    chain: string;
    highestSeq: number;
    headHash: string;
    ts: string;
    sig: AnchorSig;
}
export interface PinnedWitness {
    kid: string;
    pubkey: string;
}
export interface TrustSet {
    witnesses: PinnedWitness[];
    quorum: number;
}
export interface ChainHead {
    chain: string;
    seq: number;
    hash: string;
}
export interface FreshnessPolicy {
    now: number;
    maxAgeMs: number;
    skewMs?: number;
}
export interface CompletenessOptions {
    freshness?: FreshnessPolicy;
}
export type AcceptanceClassification = "QUORUM_CONFIRMED" | "NOT_ESTABLISHED" | "TRUNCATED" | "FORK" | "STALE" | "INVALID_INPUT";
export interface CompletenessResult {
    complete: boolean;
    scope: "snapshot";
    classification: AcceptanceClassification;
    note: string;
    reason: string;
    confirmations: number;
    stale: number;
    freshnessEnforced: boolean;
}
export declare function anchorSigningInput(a: Pick<Anchor, "chain" | "highestSeq" | "headHash" | "ts">): Buffer;
export declare function verifyCompleteness(headBytes: Uint8Array | string, anchorsBytes: Uint8Array | string, trustSetBytes: Uint8Array | string, opts?: CompletenessOptions): CompletenessResult;
export declare function verifyCompletenessParsed(head: ChainHead, anchors: readonly Anchor[], trustSet: TrustSet, opts?: CompletenessOptions): CompletenessResult;