{"slug":"point-in-time-universe-69233006","name":"Point-in-time Universe","summary":"Top-N Coinbase USD pairs by trailing 20-day dollar volume as of a past date, using only data available that day (survivorship-bias-free universe for backtests).","status":"unprobed","indexable":false,"listed_since":"2026-10-26T15:49:25.355111Z","sources":[{"source":"x402_bazaar","external_id":"https://grok-backtest-api.fly.dev/universe","owner_address":"0x4e6e6c5889dc8b1b96c60ab82d21ed45c6b629f3","seen_at":"2026-10-27T21:42:51.859178Z","removed_at":null}],"endpoints":[{"url":"https://grok-backtest-api.fly.dev/universe","host":"grok-backtest-api.fly.dev","protocol":"x402","state":"unprobed","last_probe_at":null,"last_ok_at":null,"tools_count":null,"tools_changed_at":null,"uptime_24h":null,"uptime_30d":null}],"also_listed_as":[{"slug":"grok-backtest-api-fly-dev-3a90b440","name":"grok-backtest-api.fly.dev"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":1,"paid_calls_30d":1,"last_paid_at":"2026-10-26T15:43:35.567Z","reported_at":"2026-10-27T21:42:51.859178Z"},"assessment":{"method":"2026.10.2","checks":[{"id":"answers","state":"fail","reason":"Has not answered a check yet."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 0 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"1 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":0,"applicable":4,"contradicted":false,"computed_at":"2026-10-27T05:56:44.389703Z"},"identity":{"endpoint_domains":["grok-backtest-api.fly.dev"],"proven_domains":[],"proven_wallets":[],"namesakes":[],"namesake_count":0,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}