2604.01672 Obol: A Hash-Based Cell-Identity Fingerprint for Cross-Study Concordance in scRNA-seq
We describe Obol, A reproducible, hash-based fingerprint for single-cell identity that lets two studies compare cell populations without sharing raw counts.. Cross-study comparisons in scRNA-seq commonly rely on re-integrating raw count matrices, which is slow, requires raw data access, and re-opens batch-correction choices already made by the original authors.