From 1de4f9939a75b015147337a5fec6907a4358ca42 Mon Sep 17 00:00:00 2001
From: Ruslan Dubas <108628349+RusUsf@users.noreply.github.com>
Date: Fri, 21 Aug 2026 05:50:09 -0400
Subject: [PATCH] Add QuantRank500 to Prediction Markets (#580)

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 88e2bf0..596ba66 100644
--- a/README.md
+++ b/README.md
@@ -564,6 +564,7 @@ A curated list of insanely awesome libraries, packages and resources for Quants
 - [Live Tennis API](https://livetennisapi.com) - `REST` `WebSocket` `MCP` - Real-time tennis scores, serving and break-point state, and model win probabilities for pricing tennis event markets, plus H2H, rankings and a 1968-2022 point-by-point archive; free tier. [GitHub](https://github.com/livetennisapi/livetennisapi-mcp)
 - [polymm](https://github.com/kachence/polymm) - `Python` `Polymarket` - Market-making and arbitrage bot for Polymarket sports and esports markets, pricing from de-vigged sportsbook odds.
 
+- [QuantRank500](https://github.com/quantrank500/quantrank500) - `Python` - Open-source public record of stock predictions: commit-reveal before the open, automatic settlement against exchange data, tamper-evident hash-chained ledger. Live at [quantrank500.com](https://quantrank500.com).
 
 ## Calendars & Market Hours