---
phase: 11-integrity-sweep
verified: 2026-03-26T06:00:00Z
status: passed
score: 3/3 must-haves verified
re_verification: false
---

# Phase 11: Integrity Sweep Verification Report

**Phase Goal:** A script can audit all existing Parquet cache files against Vision CHECKSUM files, with incremental mode to avoid redundant re-verification
**Verified:** 2026-03-26T06:00:00Z
**Status:** passed
**Re-verification:** No — initial verification

---

## Goal Achievement

### Observable Truths

| #   | Truth                                                                               | Status   | Evidence                                                                                                                                                                        |
| --- | ----------------------------------------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1   | Running the sweep audits existing Parquet cache files against Vision CHECKSUM files | VERIFIED | `_verify_one_day()` fetches Vision CHECKSUM + ZIP, calls `compute_sha256_hex()` + `parse_checksum_file_content()`, compares hashes. Wired in `main()` via `ThreadPoolExecutor`. |
| 2   | Incremental mode skips already-verified files via ChecksumRegistry                  | VERIFIED | `_build_work_items()` calls `registry.has_verified(base_symbol, day)` at line 114; skipped unless `args.full` is set. Registry imported at line 37.                             |
| 3   | Sweep produces a summary report with pass/fail/skip counts per symbol               | VERIFIED | `_aggregate_results()` returns `{"total": {...}, "by_symbol": {...}, "failed": [...]}`. `_format_summary()` prints per-symbol table with Pass/Fail/Skip columns.                |

**Score:** 3/3 truths verified

---

### Required Artifacts

| Artifact                        | Expected                                                        | Status   | Details                                                                       |
| ------------------------------- | --------------------------------------------------------------- | -------- | ----------------------------------------------------------------------------- |
| `scripts/integrity_sweep.py`    | Integrity sweep CLI script (min 150 lines, contains `argparse`) | VERIFIED | 487 lines, contains `argparse`, `argparse.ArgumentParser`, all required flags |
| `tests/test_integrity_sweep.py` | Unit tests for sweep logic (min 60 lines)                       | VERIFIED | 319 lines, 13 test functions, no real network calls                           |

---

### Key Link Verification

| From                         | To                                             | Via                                                  | Status   | Details                                                                                                               |
| ---------------------------- | ---------------------------------------------- | ---------------------------------------------------- | -------- | --------------------------------------------------------------------------------------------------------------------- |
| `scripts/integrity_sweep.py` | `python/opendeviationbar/checksum_registry.py` | `ChecksumRegistry` import                            | VERIFIED | Line 37: `from opendeviationbar.checksum_registry import ChecksumRegistry`; used at lines 386, 445-450, 459           |
| `scripts/integrity_sweep.py` | `python/opendeviationbar/storage/parquet.py`   | `TickStorage.ticks_dir` for file discovery           | VERIFIED | Line 38: `from opendeviationbar.storage.parquet import TickStorage`; used at lines 384-385, 389                       |
| `scripts/integrity_sweep.py` | `opendeviationbar._core`                       | `compute_sha256_hex` + `parse_checksum_file_content` | VERIFIED | Line 36: `from opendeviationbar._core import compute_sha256_hex, parse_checksum_file_content`; used at lines 177, 201 |

---

### Data-Flow Trace (Level 4)

Not applicable — `integrity_sweep.py` is a CLI script, not a rendering component. Data flows are verified via Level 3 wiring checks above: `ChecksumRegistry.add()` is called with `source="sweep"` on every pass result (line 445-450), and `registry.save()` is called batch after all workers complete (line 459).

---

### Behavioral Spot-Checks

| Behavior                 | Command                                                           | Result                                                                                                                                          | Status |
| ------------------------ | ----------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | ------ |
| All CLI flags registered | `python scripts/integrity_sweep.py --help`                        | All 8 flags (`--full`, `--symbol`, `--start-date`, `--end-date`, `--workers`, `--timeout`, `--telegram`, `--dry-run`) confirmed in usage output | PASS   |
| All 13 unit tests pass   | `uv run --python 3.13 pytest tests/test_integrity_sweep.py -x -v` | `13 passed in 1.23s`                                                                                                                            | PASS   |
| Exit code contract       | Grep `return 0` / `return 1` in `main()`                          | `return 1` when `agg["total"]["fail"] > 0`, `return 0` otherwise; `sys.exit(main())` at line 487                                                | PASS   |

---

### Requirements Coverage

| Requirement | Source Plan   | Description                                                                                                                   | Status    | Evidence                                                                                                                                                                                      |
| ----------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------- | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| SWEEP-01    | 11-01-PLAN.md | Script audits all existing Parquet cache files by re-downloading Vision CHECKSUM files and comparing against stored originals | SATISFIED | `_verify_one_day()` downloads Vision CHECKSUM + ZIP, computes SHA-256 via Rust binding, compares. Tests: `TestVerifyOneDay.test_matching_checksum_returns_pass`, `test_mismatch_returns_fail` |
| SWEEP-02    | 11-01-PLAN.md | Incremental mode skips already-verified files (reads verification registry), only checks new/unverified                       | SATISFIED | `_build_work_items()` line 114: `if not args.full and registry.has_verified(...)`. Tests: `TestBuildWorkItems.test_incremental_skips_verified`, `test_full_flag_ignores_registry`             |
| SWEEP-03    | 11-01-PLAN.md | Sweep results reported with pass/fail/skip counts per symbol and date range                                                   | SATISFIED | `_aggregate_results()` + `_format_summary()` produce per-symbol breakdown table. Optional `--telegram` flag sends to Telegram. Tests: `TestAggregateResults.test_per_symbol_counts`           |

No orphaned requirements: REQUIREMENTS.md marks SWEEP-01, SWEEP-02, SWEEP-03 all checked `[x]` under Phase 11. No additional SWEEP-\* IDs exist in the file.

---

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
| ---- | ---- | ------- | -------- | ------ |
| None | —    | —       | —        | —      |

No TODOs, FIXMEs, placeholder returns, hardcoded empty values, or stub handlers found in either `scripts/integrity_sweep.py` or `tests/test_integrity_sweep.py`.

---

### Human Verification Required

None. All must-haves can be verified programmatically. The script requires real Binance Vision network access for an end-to-end production run, but the core logic is fully covered by mocked unit tests.

---

### Gaps Summary

No gaps. All three observable truths are verified, all artifacts pass all four levels (exists, substantive, wired, data-flowing where applicable), all key links are confirmed in code, and all three SWEEP requirement IDs are satisfied with test evidence.

---

_Verified: 2026-03-26T06:00:00Z_
_Verifier: Claude (gsd-verifier)_
