Dev.to
6/26/2026

Algorithmic Entity Resolution in Music Metadata
Short summary
Music streaming platforms track recordings and compositions via separate ISRC/ISWC code systems, trapping millions in unclaimed royalties. The article presents a three-tier entity resolution pipeline using Levenshtein distance, creator overlap checks, and duration tolerance to automatically reconcile metadata. Includes a production Python/Polars implementation that scales across millions of streaming records.
- •ISRC/ISWC metadata gap in music streaming creates unclaimed royalty problem in CMO Black Boxes
- •Three-stage matching pipeline: normalized title similarity (≥0.85), creator intersection validation, duration tolerance (±4 seconds)
- •Runnable Polars implementation with stateful orchestration patterns (LangGraph, vector databases) for production scale
Generated with AI, which can make mistakes.
Is this a good recommendation for you?
