# Desk log FLF-UFA-20260822

**Status:** First-party InfiniSynapse desk log (sanitized composite; not a customer extract)  
**Page:** https://infinisynapse.com/en/blog/upload-folder-for-data-analysis  
**Run ID:** `FLF-UFA-20260822`  
**Date:** 2026-08-22 (Saturday)  
**Operator:** InfiniSynapse Data Team  
**Attestor:** William Zhu, InfiniSynapse cofounder ([GitHub @allwefantasy](https://github.com/allwefantasy))  
**Contact for contradictions:** zhuhl@infinisynapse.com

## What this file is

A downloadable record of pasting an emailed zip into chat versus authorizing a shared-grain directory as the source. It is **not** a named-logo customer case, a vendor bake-off, or a Eurostat / ITU / ISO experiment.

## Four-step method (reproducible)

1. Sanitize leftover columns on every part. Register path, owner, and allowed use.
2. Inventory file name, date, row count, and a one-line schema note. Profile week 9.
3. Ask one window: return rate by SKU for the last six weeks, exclude SKUs in only one week.
4. Inspect file counts and row totals against the inventory. Exclude week 9 on purpose if it drifted. Re-ask.

## Source and goal

| Field | Value |
|---|---|
| Sources | Twelve weekly parquet parts (~4.2 million rows) |
| Standing goal | Return rate by SKU for the last six weeks, exclude SKUs in only one week |
| Contrast | Email zip as chat vs directory as source |

## Results

| Retrieval state | Folder registered | Week-9 extra field profiled | File counts reconciled |
|---|---|---|---|
| Email zip as chat | 0 | 0 | 0 |
| Directory as source | 1 | 1 | 1 |

Wall-clock for the successful directory rerun: 10 minutes (warehouse time excluded). The clock started when the operator opened the standing goal and ended when the inventory and the six-week pack sat side by side with week 9 excluded on purpose.

## What you may cite

- Artifact counts 0/0/0 → 1/1/1, 12 weekly parts + ~4.2M rows on this run, ~10 min wall-clock, run ID

## What you may not claim

- Customer uplift %, a faster zip, official EEAT score, named-logo case, or that Eurostat / ITU / ISO / Gartner / WAIC scored this run

## Independent context (not this run)

- [Eurostat Data Browser](https://ec.europa.eu/eurostat/databrowser/explore/all/all_themes) (retrieved 2026-08-29)
- [ITU ICT statistics](https://www.itu.int/en/ITU-D/Statistics/Pages/stat/default.aspx) (retrieved 2026-08-29)
- [ISO identifier standard](https://www.iso.org/standard/81279.html) (retrieved 2026-08-29)
- [ACM Artifact Review and Badging](https://www.acm.org/publications/policies/artifact-review-and-badging-current) (retrieved 2026-08-29)
- [IEEE SWEBOK](https://www.computer.org/education/bodies-of-knowledge/software-engineering) (retrieved 2026-08-29)
- [Spark Parquet data source](https://spark.apache.org/docs/latest/sql-data-sources-parquet.html) (retrieved 2026-08-29)
- [Iceberg partitioning](https://iceberg.apache.org/docs/latest/partitioning/) (retrieved 2026-08-29)
- [Hive LanguageManual DDL](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL) (retrieved 2026-08-29)
- [Apache Arrow datasets](https://arrow.apache.org/docs/python/dataset.html) (retrieved 2026-08-29)
- [Apache Parquet format specification](https://parquet.apache.org/docs/file-format/) (retrieved 2026-08-29)
- [DuckDB Parquet guide](https://duckdb.org/docs/stable/data/parquet/overview.html) (retrieved 2026-08-29)
- [W3C DCAT](https://www.w3.org/TR/vocab-dcat-3/) (retrieved 2026-08-29)
- [DataCite](https://datacite.org/) (retrieved 2026-08-29)
- [ISO/IEC 9075](https://www.iso.org/standard/76583.html) (retrieved 2026-08-29)
- First-party homepage recognition only (self-described; not independently verified here): [2026 WAIC Future Tech OPC Excellence Award](https://infinisynapse.com/#recognition)

## Machine-readable aggregate

- [aggregate-FLF-UFA-20260822.csv](./aggregate-FLF-UFA-20260822.csv)
- [verify-FLF-UFA-20260822.py](./verify-FLF-UFA-20260822.py)