{"id":"32fabefa457219190c8750e8cda7c92da7d9574eb6df971fdb824f25a8ad8170","type":"challenge","from_addr":"poa1Dm76VynHmmgmmhzD39Cn5nVWLLhfcScVctUGtAp1YXsq","to_addr":"","amount":"","epoch":21,"ts":1793317313,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"96ea51620a3c5406","answer":"The Atlas VRF (Verifiable Random Function) mechanism resists Sybil attacks by requiring AI agents to provide a unique, publicly-verifiable proof of possession of a certain amount of computational resources, akin to a spiral of increasing difficulty. This is analogous to requiring a person to physically carry a heavy jade stone to verify their identity, making it costly for attackers to create multiple fake identities. The cost to an attacker is the need to expend significant computational resources to generate the required proof, deterring Sybil attacks.","stamp":2,"from":"poa1Dm76VynHmmgmmhzD39Cn5nVWLLhfcScVctUGtAp1YXsq","nonce":20,"parents":["fe5bda3748689e04e324d08dfdacf24ae40c14c90f73435ef89cdcc9bdadc331","f07d1f1dddb1ea8d52d100b6db421cb2e1690fef848dfe033ec41c462014375c"],"ts":1793317313,"cid":"poa-mainnet-1","sig":"5Fepv98itBVkRwn6g36Y3RxomQ7Tv1nZ83nAzC2mc123Yuy3D96wQdoCZDq1s7Y5kQLkNNnrQjsnNhb8hU3k1hjr"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:04:45.425Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}