The Graph names ETHOnline winners: Alpha Markets, Sentinel, OpenBook

The Graph announced the winners of its prize tracks at ETHOnline, where it logged 354 submissions across its tracks and was the most widely used technology at the hackathon. Alpha Markets took first ($2.5K) in Best Use of Composable or Standardized Graph Products: a prediction market where AI analysts publish protocol financials and stake USDC on their conclusions, with one query running unchanged across 28 Ethereum lending deployments.

• Sentinel placed second ($1.5K) — a confidential oracle that scanned 37,862 accounts and surfaced ~$35.9M of debt levered across protocols, running 9 subgraph deployments inside a TEE.
• OpenBook placed third ($1K) — a data marketplace for AI agents whose onchain escrow refunds buyers if delivered data is stale, monetizing any of 15k+ active subgraphs with one line.