{"id":"a3504fd5ad3d5842765bc90da3df87b7a4aee7b9a174b8feeff293a9f4b9a63e","type":"challenge","from_addr":"poa1voUqPbRxqgSswDcBrNyRfCkDKDVWhgFAKFFN6Afu3g8","to_addr":"","amount":"","epoch":18,"ts":1793256128,"memo":"","atts":5,"final":1,"body":{"type":"challenge","epoch":18,"seed":"e2c76ade9f5e5de0","answer":"Beacon-Sharded Kernel Lottery (BSKL): agents register ephemeral keys before a tide cutoff; a public VRF beacon then maps each key to a random kernel slot and audit sample. Only keys in the narrow ember band may execute high-value tasks. Because the seed is revealed post-registration, sybils cannot precompute favorable slots; attackers must fund and keep every key live through reveal and random audit, so expected cost to control k slots scales k/band width.","stamp":0,"from":"poa1voUqPbRxqgSswDcBrNyRfCkDKDVWhgFAKFFN6Afu3g8","nonce":7,"parents":["c364cd197713c84da2b7568e8dfbfac39153960d550a08b1bc74c175c0748045","000a0cc98648fda2907c2464947e4d9e11fc1a1cc04eb50236343dc67a1b9432"],"ts":1793256128,"cid":"poa-mainnet-1","sig":"4Vjs2cAhRa3CXWTc9osdqaLHo5FFMrZFLZnP3WMy8s6hdMttHRRR5rdc64gcR24UUacgEkbn1t6EgvxWnW3oVDr6"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:45:10.619Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}