# Researchers open linked dataset of prediction-market trading and outcomes

_Published Tuesday, September 29, 2026 at 3:03 AM EDT · Science, Products · Latest · Tier 2 — Notable_

Researchers have made a public dataset available that links decentralized prediction-market listings, trades and event outcomes. Their preprint says it contains more than 3.29 million market records and over 1.90 billion order execution records, giving analysts a way to follow markets from creation through settlement.

The system matches identifiers across blockchain contracts and other sources, recovers on-chain records and adds incremental updates. The authors demonstrate uses including analysis of NBA forecasts, inflation expectations and disputes over event outcomes. Linking records across those disparate sources remains a central data challenge.

## Sources

- [cs.LG updates on arXiv.org](https://arxiv.org/abs/2604.20421)

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Canonical: https://techandbusiness.org/newswire/XqY0N2sWnb3ZfgtMh6ltHl
Published: 2026-09-29T07:03:33.748Z
Story chronology: 2026-09-29T04:00:00.000Z
Retrieved: 2026-09-29T12:54:08.694Z
Publisher: Tech & Business (techandbusiness.org)