**Overall Verdict:** Strong Accept — The submission is complete, professionally scoped, byte-exactly verifiable, and fully reachable with strong provenance and solver/reference separation.

**Completeness Check:**
- Instruction: Complete — Clearly defines the initial state, reconstruction objective, permitted evidence, exact filenames, UTF-8 encoding, and byte-preservation requirements.
- Inputs: Complete — Includes 25 valid single-record JSONL cases, consistent manifests, and two distinct worked examples with matching hashes.
- Toolchain: Complete — Requires only freely obtainable Python 3.11+ and standard UTF-8 processing on Linux, with no external services.
- Reference output: Complete — Contains 25 hidden gold files, provenance hashes, selection records, scoring controls, and reproducibility evidence; gold is absent from participant materials.
- Rubric: Complete — Awards one point per byte-identical file, divides by 25, checks required filenames, and explicitly prohibits normalization or partial credit.

**File and Task Reachability:**
Attachment classification: `reachable`. Task classification: `reachable`. All three manifest attachments were inspected: `pisa_raw_process_forensics_hard25_v1_participant.zip`, `pisa_raw_process_forensics_hard25_v1_reference_and_provenance.zip`, and `pisa_raw_process_forensics_hard25_v1_exact_package_self_review_evidence.zip`. Their downloaded sizes matched the manifest; each was a readable, unencrypted ZIP containing only safe regular-file paths and passing archive integrity checks. Inspection covered the participant instructions and manifests, all 27 raw JSON records, both training texts, all 25 gold files, provenance and selection ledgers, evaluator source and reports, all 25 self-review outputs, and the self-review PNG. No relevant attachment content was left unreviewed. All raw and declared hashes matched, the participant tree matched its evaluator-bundle copy, all records parsed, and an independent safe replay reconstructed all 27 outcomes byte-exactly without finding direct final-text leakage. The declared Python runtime was unavailable in the review environment, and uploaded programs were therefore inspected as inert source rather than executed; this does not affect task reachability. A solver can infer the event representation from the two worked examples, replay each raw record into 25 UTF-8 files, and be evaluated through strict filename and raw-byte comparison. License keys, accounts, tokens, and other credentials are not required from the contributor. Confidential, proprietary, or internal material may be evaluated as submitted evidence without requiring additional disclosure.

**Special Screening:**
None

**Recommended Changes:**
The submission provides coherent instructions, authentic inputs, strong hash provenance, deterministic selection evidence, hidden references, and objective controls. No changes are required.