{"protocol_id":"play_solo_binary_v1","version":"1.0.0","spec_hash":"901893d71e1890ce7de6230315e0a762cc4b4720c8d9a3b19d83605e3ec528e1","spec":{"abandonment_rule":"once a session opens, all 100 bits count (unanswered = miss)","description":"Single-participant binary prediction against a concealed hardware-QRNG target.","evidence":"per-trial leaf hashes plus session head hash; public /verify","prediction_locked":"each guess is recorded before its bit is revealed","scientific_criterion":"C1 per-account cumulative boundary (Appendix A); first look at 5,000 counted trials","scoring":"one point per correct prediction","target_method":"hardware QRNG (tailnet bridge); 128-byte block drawn and SHA-256 committed before the first guess; each bit revealed only after its guess is receipted","tie_rule":"not applicable","trials":100,"winner_rule":"not applicable (solo)"},"published_at":"2026-09-14T23:24:28.554Z"}