{
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 "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.",
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  "title": "Cashless E-Ticketing on the Bus Network",
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     "Existing source notes are descriptive locators, not page- or paragraph-exact citations.",
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     "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim."
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       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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}