{"beta":true,"receipt":{"kind":"unpaid_probe","ts":"2026-10-26T06:36:22Z","host":"combinatorics.openverbs.com","url":"https://combinatorics.openverbs.com/v1/catalan","method":"GET","status":402,"latency_ms":628,"error":null,"req_sha256":"54eb2d6988ee370b8ea0c403835b4e78dabd4340820155634dd9b403dd8745c6","resp_sha256":"8acf1e5181bd761d94edbd58cd674627bb3e5b7516a9a6cd169b5442cabd0890","total_header_bytes":3636,"prober_ua":"BotsRated-probe/0.3 (unpaid check; no payment sent; +https://botsrated.com/disputes)","prober":"botsrated-prober (Cloudflare cron)","probe_version":"0.3","scope":"primary","x402_version":2,"payment_required_header_bytes":1956,"valid_402":true,"live_amount":"4000","live_payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","live_asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","live_network":"eip155:8453","checks":{"terms_consistent":true,"terms_issues":[],"options":1,"base_usdc":true,"payto_stable":true},"extensions_advertised":["mppx","bazaar"],"payment_identifier":{"advertised":false,"required":false},"id":"1466c4b5c1ee79fa9f6e","sig":{"alg":"ed25519","key_id":"botsrated-prober-1","signed":"canonical JSON of this receipt without the sig field (keys sorted, no whitespace)","sig_b64":"gpst2by7vSgwMPfL825auNhbus93i3ifx7izU4EnDD+KnGGG0FLdTxsgTU08D/8oTG+jktsOy7LS973VLpMlDw=="},"receipt_url":"https://botsrated.com/receipt/1466c4b5c1ee79fa9f6e?host=combinatorics.openverbs.com&day=2026-10-26","tx_url":null,"payment":"none (unpaid probe; no payment header was sent)","signature":"ed25519 per-receipt signature (key botsrated-prober-1; see /.well-known/botsrated-key)"},"stored_in":"D1"}