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DRM3 Data Licenses

Data source licenses and terms of use for Signals, the DRM3 open data ingestor.

Every data source ingested by Signals is documented here with its license type, restrictions, and terms URL. All fetched data is provenance-signed with Ed25519 per-row receipts.

Sources by Category

Government (7 sources)

Source License Key Attribution Terms
Congress.gov US Gov Public Domain Yes No api.congress.gov
Federal Register US Gov Public Domain No No federalregister.gov
FRED Free API Yes Yes fred.stlouisfed.org
GovInfo US Gov Public Domain Yes No api.govinfo.gov
GSA .gov US Gov Public Domain No No gsa.gov
SEC EDGAR US Gov Public Domain No No sec.gov/edgar
US Census US Gov Public Domain No No census.gov/data

Financial (4 sources)

Source License Key Attribution Terms
Binance API ToS No Yes binance.com/terms
Etherscan API ToS Yes Yes etherscan.io/terms
FDIC US Gov Public Domain No No fdic.gov
NASDAQ FTP Public No No nasdaqtrader.com

Environmental (3 sources)

Source License Key Attribution Terms
Open-Meteo CC BY 4.0 No Yes open-meteo.com/terms
USGS Earthquakes US Gov Public Domain No No earthquake.usgs.gov
USGS Water US Gov Public Domain No No waterservices.usgs.gov

Social (3 sources)

Source License Key Attribution Terms
GDELT Free / Academic No Yes gdeltproject.org
GitHub Activity API ToS No Yes docs.github.com
Reddit API ToS No Yes reddit.com/wiki/api-terms

Prediction (1 source)

Source License Key Attribution Terms
Polymarket Free API No No polymarket.com/terms

Security (5 sources)

Source License Key Attribution Terms
Cisco Umbrella Free Top 1M No No umbrella.cisco.com
Google Safe Browsing API ToS Yes Yes developers.google.com
Majestic Free Million CSV No Yes majestic.com/terms
Mozilla Observatory MPL 2.0 No No observatory.mozilla.org
Tranco Free / Academic No Yes tranco-list.eu

License Types

  • US Gov Public Domain - Federal government data, no restrictions
  • CC BY 4.0 - Free to use with attribution (Open-Meteo)
  • API ToS - Proprietary terms, typically allows display but not raw resale
  • Free / Academic - Open for non-commercial use, attribution expected
  • MPL 2.0 - Mozilla Public License, open source
  • FTP Public - Publicly available FTP data (NASDAQ)
  • Free Top 1M / Free Million CSV - Freely distributed ranking datasets

How We Use This Data

All data is:

  1. Fetched via public APIs on a scheduled cadence
  2. Signed with Ed25519 per-row provenance receipts (row-level attestation)
  3. Rolled up into Merkle trees per batch
  4. Stored in D1 (7-day hot cache) and BigQuery (permanent archive)
  5. Served via authenticated API with provenance verification

We do NOT resell raw data. All data is transformed via provenance signing and aggregation.

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