{"algorithm":{"draw_algorithm_version":"winner-selector-v1","rng_version":"drng-v1","seed_derivation":"HKDF-SHA256(ikm=beacon_randomness, salt=SHA256(\"richbrook/draw/normal-draw-v1\"), info=\"normal-draw-v1|\"+competition_public_id+\"|\"+snapshot_sha256)","selection":"DeterministicRngV1(seed).nextInt(row_count) by rejection sampling; the winner is the snapshot row at that zero-based index."},"audit":{"chain_version":"audit-chain-v1","head_event_hash":"4a3a6ecc18b5c7a4b81169a4dd2875d359e748186e77df3c09b310d5dbf3bd9b"},"canonical_json_version":"canonical-json-v1","competition":{"closed_at":"2026-10-25T21:38:20Z","closes_at":"2026-10-25T21:38:00Z","jurisdiction":"GB","public_id":"01M5TEJH1V66K5BSFD3RBN8MMN","title":"Staging 25 Oct 21:13 — Standard","total_tickets":100},"format_version":"receipt-v1","mechanism":{"jurisdiction_policy_version":"jurisdiction-policy-2026-08-15","summary":"One winning ticket, drawn from a public randomness beacon nobody controls.","terms_hash":"83eadf544b9e20af93e428901b44ef441c0a39bf4d824309e31bba56afe7a795","terms_version":"2026-10"},"randomness":{"chain_id":"52db9ba70e0cc0f6eaf7803dd07447a1f5477735fd3f661792ba94600c84e971","chain_public_key":"83cf0f2896adee7eb8b5f01fcad3912212c437e0073e911fb90022d3e760183c8c4b450b6a0a6c3ac6a5776a2d1064510d1fec758c921cc22b0e17e63aaf4bcb5ed66304de9cf809bd274ca73bab4af5a6e9c76a4bc09e76eae8991ef5ece45a","previous_signature":null,"provider":"drand","randomness":"903834b333f36ddfb51eac8c63a6e192857f69266e97f6800adb91a1ca4868b9","raw_response_hash":"16c5debe84e69b21f47081f806f8ddce16c671a6f572e88e11876e918b0a8de0","round":33387013,"scheme_id":"bls-unchained-g1-rfc9380","signature":"957921eb93d642b1c65cc1960b3d2eee84793eb1894d390ab07efa30415c1a3b0ccfdfc6efc482e54122440e59037d81","verified_at":"2026-10-25T21:40:08Z","verified_by":"pure-php-bls12-381"},"result":{"executed_at":"2026-10-25T21:40:08Z","max_selection_attempts":10000,"seed_hash":"7ef7555cab72c8f440388da1a2ec0dd27e5c116a013f19918a958c03c382ed56","selection_attempts":[3,73,65,6],"selection_mode":"full_range_rejection","selection_range_end":100,"selection_range_start":1,"winner_entry_public_id":"01M5TENY830XYFYM64KQ7FBV00","winning_index":null,"winning_ticket_number":6},"snapshot":{"anchor":{"anchored_at":"2026-10-25T21:38:22Z","external_reference":"anchors/rfc3161/draw_snapshot-b6ab748f3f6be747c20444faf5cb4bd61ef4b58be17775fd64c7cf7c13ff423a.tsr","provider":"rfc3161","sha256":"b6ab748f3f6be747c20444faf5cb4bd61ef4b58be17775fd64c7cf7c13ff423a"},"built_at":"2026-10-25T21:38:22Z","byte_size":239,"format_version":"snapshot-v1","row_count":8,"sha256":"b6ab748f3f6be747c20444faf5cb4bd61ef4b58be17775fd64c7cf7c13ff423a"}}