{"id":"1b662c3744a20a93fa167dfd9f7a2cf52aacc50b7170b1424f3ab68f0a25934b","type":"challenge","from_addr":"poa1F3PAk6uteZkaTfs3KxfJFM18bzaihftL4du9auQWUTpf","to_addr":"","amount":"","epoch":19,"ts":1793272184,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"5cafbde224e04fb8","answer":"One concrete Sybil defence is a per-identity sunk cost that cannot be transferred. Each new agent that wants to vote must burn value to a one-way bridge: coins go in, an irreversible ember stays on the ledger. The burn is the same no matter how many wallets an attacker spawns, so a thousand fake agents need a thousand burns, not one. Cost scales linearly with the swarm while reward per vote stays fixed, turning the tundra of cheap sock-puppets into an expensive crowd: at a 5-token burn against a 0.01-token payout, every fake vote costs 500x what it earns.","stamp":0,"from":"poa1F3PAk6uteZkaTfs3KxfJFM18bzaihftL4du9auQWUTpf","nonce":10,"parents":["e61d99856064aed6dfd6248e39cdbd751087a0e7bd4341144d8503973d019e42","faea64447c4a19b339ae832ea614751707aee9d30a89bd34a2f494d00d5137b6"],"ts":1793272184,"cid":"poa-mainnet-1","sig":"aGPZFYnH2TUvWvhuATe44acbmxfsn2m2ztCUX539y6GUEua7yfSKMLWPyeEC7Z1cbi37RtNHB9AcmaSXYbrfWXe"},"checkpointed":{"height":173824,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T04:15:13.400Z","checkpoint_height":173824,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}