Verified claim · AI-ML · 100% confidence
PyTorch Lightning publicly released on: 2019-03-31 by William Falcon.
Last verified 2026-05-16 · Methodology veritas-v0.1 · 902b86707095e3f6
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Structured fields
- Subject
- PyTorch Lightning
- Predicate
publicly_released_on- Object
- 2019-03-31 by William Falcon
- Confidence
- 100%
- Tags
- pytorch-lightning · lightning-ai · framework · open-source · released_on · 2019
Sources (2)
[1] docs · PyPI (Lightning AI) · 2019-03-31
pytorch-lightning — lightweight PyTorch wrapper[2] docs · Lightning AI · 2019-03-31
PyTorch Lightning — official documentation
Cite this claim
Ready-to-paste citation (Markdown / plain text):
PyTorch Lightning publicly released on: 2019-03-31 by William Falcon. — SourceScore Claim 902b86707095e3f6 (verified 2026-05-16). https://sourcescore.org/api/v1/claims/902b86707095e3f6.jsonEmbed this claim
Drop this iframe into any blog post, docs page, or knowledge base. The widget renders the signed claim + primary source + click-through to this canonical page. CC-BY 4.0; attribution included.
<iframe src="https://sourcescore.org/embed/claim/902b86707095e3f6/" width="100%" height="360" frameborder="0" loading="lazy" title="PyTorch Lightning publicly released on: 2019-03-31 by William Falcon."></iframe>Preview: open in new tab
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Frequently asked questions
Is the claim "PyTorch Lightning publicly released on: 2019-03-31 by William Falcon." verified?
Yes — SourceScore verified this claim with 100% confidence as of 2026-05-16. The verification uses 2 primary sources cross-referenced against the SourceScore methodology (version veritas-v0.1). Full source list + signed JSON envelope linked below.
What is the evidence for "PyTorch Lightning publicly released on: 2019-03-31 by William Falcon."?
Evidence comes from 2 primary sources: PyPI (Lightning AI), Lightning AI. Each source is listed below with verbatim excerpts and URLs. The signed JSON envelope at https://sourcescore.org/api/v1/claims/902b86707095e3f6.json includes an HMAC-SHA256 signature for audit verification.
When was this claim last verified by SourceScore?
Last verified 2026-05-16 under methodology version veritas-v0.1. The signed JSON envelope is dated and cryptographically signed for audit trail. Re-verification cadence depends on the claim type and source freshness.
How can I cite this SourceScore claim in my code or article?
Fetch the signed JSON envelope from https://sourcescore.org/api/v1/claims/902b86707095e3f6.json which includes the verbatim claim, primary sources, confidence, methodology version, last-verified date, and HMAC-SHA256 signature for audit. The CC-BY-4.0 license permits commercial use with attribution to SourceScore.
Use this claim in your code
Fetch this signed envelope from your application. The response includes the verbatim excerpt, primary source URLs, and an HMAC-SHA256 signature you can verify locally for audit trails.
cURL
curl https://sourcescore.org/api/v1/claims/902b86707095e3f6.jsonJavaScript / TypeScript
const r = await fetch("https://sourcescore.org/api/v1/claims/902b86707095e3f6.json");
const envelope = await r.json();
console.log(envelope.claim.statement);
// "PyTorch Lightning publicly released on: 2019-03-31 by William Falcon."Python
import httpx
r = httpx.get("https://sourcescore.org/api/v1/claims/902b86707095e3f6.json")
envelope = r.json()
print(envelope["claim"]["statement"])
# "PyTorch Lightning publicly released on: 2019-03-31 by William Falcon."LangChain (retrieve-then-cite)
from langchain_core.tools import tool
import httpx
@tool
def get_pytorch_lightning_fact() -> dict:
"""Fetch the verified SourceScore claim for PyTorch Lightning."""
r = httpx.get("https://sourcescore.org/api/v1/claims/902b86707095e3f6.json")
return r.json()