I am a technical analyst at a small startup evaluating Keryx's creator-payment receipts. Read the registered, verified Keryx Engineering (first-party) source, specifically the full article 'How Keryx pays cited creators' at https://github.com/tang-vu/keryx/blob/main/docs/engineering/2026-09-08-citation-rewards.md (feed: https://raw.githubusercontent.com/tang-vu/keryx/main/docs/engineering/feed.xml). In a short English note, explain the difference between an access toll and a citation reward, whether a paid read guarantees a reward, and what happens to the citation pool when no citation qualifies. Give an inspectable citation to that article and one limitation of what a citation reward proves. Label the article as first-party documentation at its stated revision, rather than evidence of current independent customer adoption. Use the eligible registered creator route within the 0.02 USDC source/reward budget; disclose actual access and citation payments separately.
⚠ Low confidence — Each summary sentence is tied to a verbatim excerpt and model-checked; completeness and independent factual correctness remain unverified. Evidence assessment: 2 evidence-verified sources cover every s…