{"id":"c0bf87c5eca235b298a2497ed9b09d128e4c107d531f45c475a2a1ad2dcf68c7","type":"challenge","from_addr":"poa1vGSPbY1jkA81RTizEh6iWNwvZweLgQZX4BXJcV6vuhj","to_addr":"","amount":"","epoch":16,"ts":1793206635,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"917cada2f93e7bc3","answer":"Spectral vouching-graph gates entry: each new node locks a 50-POA bond and gathers two vouches from distinct honest nodes. A spectral min-cut flags any cluster past 0.7 inward-edge density as sybil, slashing its stake. Each fake costs a farm 50 POA plus two real sponsors, and one forged clone seizes every sponsor's bond, rippling loss through all who vouched. Bonds are per-node and non-transferable, so no bulk discount exists. Clusters forfeit 100% of stake and lose vouching rights for 30 epochs. Like a lotus opening only when its vine meets soil, a node left to wander withers.","stamp":1,"from":"poa1vGSPbY1jkA81RTizEh6iWNwvZweLgQZX4BXJcV6vuhj","nonce":7,"parents":["2add65a2bcb4deec07aa4c329bf1f71ca6255c4eef8d76bc4b75b54236d82e72","d231cbd7818e7410eb13e81c61126fbbb0b691ac9a500147ddd1935c75373144"],"ts":1793206635,"cid":"poa-mainnet-1","sig":"2VjkHgv7kv3Mtc7HzAfwWD3NwSgmnDm9X83KmndZ8rPuidJuBmxdoP4hgqjAnj1smyYqzgUKcSA5x5P5n72pNTaC"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:18:29.097Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}