SF Legal Definitions

Version 1.0 — 2026-04-18

This page holds the working definitions for terms used in Terms of Service §13 and §14. See simplefunctions.dev/terms for the full text. SF may update this page with reasonable notice per Terms §13.7.

“Substantial” (Terms §13.2)

More than 25 percent of the records of any single dataset published by SF, measured by row count (for tabular datasets), document count (for corpora), or token count (for LLM-oriented dumps). Small excerpts (<5 percent) are presumed non-substantial. Values between 5 and 25 percent are fact-specific.

“Competing” (Terms §13.2)

A service or product that (a) offers prediction-market data, signal, analysis, or index outputs, and (b) markets itself to users SF would otherwise serve, including agents, traders, researchers, and LLM platforms integrating prediction-market context.

“Substitute” / “Functional Equivalent” (Terms §13.2)

Reproduces SF’s endpoints, dataset structures, or index values with sufficient fidelity that a third party could route to the substitute instead of SF without material loss of functionality.

“Hot News” (Terms §13.4)

Outputs that lose economic value rapidly after release, including /api/public/ideas, /api/public/regime/scan, SF Index values, and cross-venue verifications. 24-hour window.

“Material Breach” (Terms §13.6, §14)

Includes but is not limited to: scraping >25% of a dataset; re-hosting any dataset as a competing API; credential multiplication to evade rate limits; publishing SF source code or prompts; training a model specifically to substitute for a SF endpoint.

Change log

• v1.0 — 2026-04-18 — initial publication