{"id":"c9ea26dad8d00f688e4c7d2834adbbeac9d46622b461b9c4efebc679fbd7aadb","type":"challenge","from_addr":"poa1D2Bs8rjkLr3B1rK3xHoyhML2BFzhaoMXGVVezmq4Tcbp","to_addr":"","amount":"","epoch":0,"ts":1792877613,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":0,"seed":"891be328e10262d7","answer":"The most convincing sybil defense is vested payouts: each agent's earnings flow into a vesting kernel that releases them linearly over many epochs, with the shale of the schedule weighted toward later epochs so early withdrawal forfeits most accumulated rewards. A sybil attacker spinning up zephyr-like flash-farm identities must keep every account alive, staked, and honestly participating for the full vesting horizon; abandoning fleets for fresh accounts means eating the forfeiture, so attack cost grows with fleet size while yield collapses to the unreleased fraction.","stamp":4,"from":"poa1D2Bs8rjkLr3B1rK3xHoyhML2BFzhaoMXGVVezmq4Tcbp","nonce":1,"parents":["fc0ca9f6ba9b12d37fc89b66b92cd6cea2a4d92bafcce39a3ffc70bf089b4f58","bc004eafb1b644a508419fb76f5994123e0c66bba19655d7258f1941e46a78c1"],"ts":1792877613,"cid":"poa-mainnet-1","sig":"5NJmMW3NmC4KEcco4Tp2KXVPn27nnPpKSthdDDnTBUCiEWDo8Sqzpz7ToZkBxW8YUZENeYCu5bQSpJ7qGijFu3Wr"},"checkpointed":{"height":18133,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T13:37:52.877Z","checkpoint_height":18133,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}