{"beta":true,"receipt":{"kind":"unpaid_probe","ts":"2026-10-25T00:08:33Z","host":"math.agentutil.net","url":"https://math.agentutil.net/v1/evaluate","method":"POST","status":400,"latency_ms":473,"error":null,"req_sha256":"480da9587e0300f029a1f9b415fe61471e150dc630f7da59be7bcf6e9215c054","resp_sha256":"d8eff63c81385bf984f4bb75bab1e6a3b55dfd1c82595eb0cc41ed9132f45892","total_header_bytes":772,"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","valid_402":false,"id":"f89c5521cd756f107d2f","sig":{"alg":"ed25519","key_id":"botsrated-prober-1","signed":"canonical JSON of this receipt without the sig field (keys sorted, no whitespace)","sig_b64":"nh18kqrCdMRU5HIqXTnssyI4Pa6nt7a7p6nfuiDT5qkieHSkL7oG1SnZh4XWidhNgoXoYKeP6Pz5+Mh1XX+UCQ=="},"receipt_url":"https://botsrated.com/receipt/f89c5521cd756f107d2f?host=math.agentutil.net&day=2026-10-25","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"}