/**
 * Cross-run claim identity per SPEC/uvrn-claim-id-v1.md.
 *
 * This identity is deliberately distinct from a producer's per-run `runClaimId`.
 * The normalized payload is serialized through the shared receipt canonicalizer
 * before hashing (ADR-006, ADR-010).
 */
/**
 * Normalize claim prose for cross-run identity.
 *
 * The operation is ordered and deterministic: Unicode NFKC, trim, Unicode-aware
 * lowercasing, punctuation-to-space, whitespace collapse, then a final trim.
 */
export declare function normalizeClaimText(claimText: string): string;
/** Normalize the optional identity domain with the same locked text rules. */
export declare function normalizeClaimDomain(domain?: string | null): string;
/**
 * Derive the additive cross-run identity `claim:<12 lowercase hex>`.
 *
 * This helper does not mutate or replace any existing receipt field or frozen
 * hash surface. Hosts may carry the result in an additive `canonicalClaimId`.
 */
export declare function canonicalClaimId(claimText: string, domain?: string | null): string;
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