Module hashing 

Internal helpers for canonical JSON hashing and ArtifactId computation.

This module is not part of the stable API contract (Appendix C.1) and may change. Canonical JSON and ArtifactId hashing helpers.

Policy:

• Structured data MUST be hashed as canonical JSON bytes (RFC 8785 / JCS-style).
• Hashed JSON MUST NOT contain floats (fractional numbers); use integer-scaled values or strings instead.

Enums

CanonicalJsonError

Errors returned when a JSON value cannot participate in canonical hashing.

Functions

artifact_id_for_bytes

Compute the content-addressed ArtifactId for raw bytes (SHA-256 lowercase hex).

artifact_id_for_json

Compute the content-addressed ArtifactId for structured JSON (canonical JSON bytes + SHA-256).

canonical_json_bytes

Serialize a serde_json::Value into canonical JSON bytes.