License the verified-facts corpus

The full DeepInquiry corpus — every verified fact, source, citation, quality score, and CiteSig signature — delivered as a licensed dataset. For AI training, academic research, and commercial product integration.

Contact sales Try the 90-fact sample (free)

What's in the corpus

Every fact

Structured claim, category, era, and confidence score for every published fact.

Full source graph

Every primary source URL, publication date, archive snapshot, and independence score.

Quality grades

Standard, verified, and audited tiers — with the underlying independence math.

CiteSig signatures

Every fact carries a cryptographic proof-of-provenance signature you can verify offline.

License tiers

All licenses include the full corpus snapshot plus monthly deltas. Annual plans save up to 20% and include a signed Data Subscription Agreement (DSA v1.1).

Research

$459 /month

or $4,399/year (save $1,109)

Academic + non-commercial use
Full corpus snapshot
Monthly delta updates
Citation-required in publications
Email support

Monthly Annual

Commercial

$999 /month

or $9,590/year (save $2,398)

Product integration OK
AI model training rights
Full corpus + weekly deltas
DSA v1.1 signed agreement
Priority email support

Monthly Annual

Enterprise

$2,999 /month

or $28,790/year (save $7,198)

Everything in Commercial
Real-time streaming deltas
Redistribution rights
Custom fields & schema requests
Shared Slack channel + SLA
Custom MSA + DPA

Monthly Annual

Strategic

Custom

Bespoke partnership

Exclusive category rights
Co-branded verification runs
Custom source ingestion
Dedicated infrastructure
Equity + revenue-share options

Contact founders

Also available on

AWS Data Exchange — pay-as-you-go or annual subscription, billed through your AWS account. Provider-qualification pending as of Sep 2026.
Hugging Face Datasets — free 90-fact sample at deepinquiry/sample-90.

Frequently asked

What format is the data delivered in?

JSONL (one fact per line) and CSV. Full schema documented in the DSA. Sample: HF sample-90.

Can I use this to train an AI model?

Yes — the Commercial and Enterprise licenses grant AI model training rights on the corpus. Research license is training-permitted for academic/non-commercial models only.

How do updates work?

Research: monthly deltas. Commercial: weekly deltas. Enterprise: real-time streaming via webhook. All deltas are additive — no destructive rewrites of previously-shipped facts.

What about the Data Subscription Agreement?

All commercial licenses require the DSA v1.1 (short, ~4-page agreement covering IP, usage rights, refund policy, and technical attestation). Full text available on request before signing.