# Desk log MDA-MAP-20260823

**Status:** First-party illustrative marketplace composite; not customer, platform, settlement, benchmark, or independently audited data  
**Run date:** 2026-08-23  
**Evidence checked:** 2026-08-31  
**Operator:** InfiniSynapse Data Team  
**Attestor:** William Zhu, InfiniSynapse cofounder ([GitHub @allwefantasy](https://github.com/allwefantasy))

The operator inspected two illustrative event feeds and a shared SKU map. The output displayed 42,000 and 38,600 order events; 1,100 and 980 listing IDs; 1,240 internal SKUs; 126 unmapped IDs; an 89.8% match rate; seven fee flips; and three return flips. A blended rank was held because mapping remained incomplete.

The [CSV](https://infinisynapse.com/blog-media/marketplace-data-analysis/downloads/feed-match-MDA-MAP-20260823.csv) exposes nine aggregates and one held action. The [verification script](https://infinisynapse.com/blog-media/marketplace-data-analysis/downloads/verify-MDA-MAP-20260823.py) checks displayed output only. Source rows, listing identities, mapping logic, monetary values, SQL, denominators, and reconciliations are unavailable.

External context: [U.S. GAO Assessing Data Reliability](https://www.gao.gov/products/gao-20-283g), [UK Government AQuA Book](https://www.gov.uk/guidance/the-aqua-book), and [NIST SP 800-53 Rev. 5](https://csrc.nist.gov/publications/detail/sp/800-53/rev-5/final) (retrieved 2026-08-31). These publishers did not review this run.