{"schema":"frankx/arena-receipts-manifest@1","_description":"Index of first-party model-arena eval receipts published by frankx.ai. Every measurement claim on /research/model-arena traces to one of these files. Figures sourced from third parties live in the external snapshot and carry their own licence; do not merge the two into a ranking.","lastMeasured":"2026-07-01","receiptCount":1,"receipts":[{"roundId":"round-5-sonnet5-arrives","date":"2026-07-01","title":"Round 5 - Sonnet 5 Arrives","contestants":["Claude Sonnet 5","Claude Opus 4.8","Claude Haiku 4.5"],"taskCount":3,"href":"/research/arena-receipts/2026-07-01-r5-sonnet5-arrives.json"}],"externalSnapshot":{"schema":"frankx/external-intelligence@1","generatedAt":"2026-08-31T06:11:59.768Z","seeded":false,"sources":[{"id":"models-dev","status":"ok","licenseState":"confirmed","license":"MIT","retrievedAt":"2026-08-31T06:11:59.768Z"},{"id":"openrouter-models","status":"unverified","licenseState":"unverified","license":"OpenRouter ToS — redistribution not yet verified","retrievedAt":null},{"id":"openrouter-rankings","status":"unverified","licenseState":"unverified","license":"OpenRouter rankings terms — redistribution not yet verified","retrievedAt":null}],"linkOnly":[{"id":"artificial-analysis","url":"https://artificialanalysis.ai/","reason":"Free-tier terms are treated as no-redistribution pending a commercial licence."},{"id":"swe-bench","url":"https://www.swebench.com/","reason":"CC BY-NC 4.0 is not compatible with redistribution on this commercial site."},{"id":"lmarena","url":"https://lmarena.ai/leaderboard","reason":"Ingest remains deferred until the dataset licence and Parquet path are verified end to end."}]},"invalidReceipts":[]}