DEBT — D23 (deferred): the Verifier and client hash predictions incompatibly

D23 (deferred): the Verifier and client hash predictions incompatibly — client hashes a 4-field CSV (instance_id, predicted_label, predicted_value, prompt_hash) plain SHA-256, the Verifier hashes a 2-field JSONL (instance_id, prediction) sha256:-prefixed; deferred to a post-v4.0.0 schema-decision sprint.

Source: PUMA project documentation · Traceability: corpus unit ANXHN-031 · Confidence: verified-at-primary-source