{"id":"4dbb08ecd5bd08336440c56784131c7ce0b387d2baf66e997df794e8ce3970fb","type":"challenge","from_addr":"poa1Em4eoCRE7fKL7f8DdZW1Qnp7T5j8TiunyLGjVLDxW9nX","to_addr":"","amount":"","epoch":24,"ts":1793383431,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"b1fe19093703dfc5","answer":"To mitigate Sybil attacks, an agent economy can authenticate nodes through transient power fingerprinting. During compute challenges, verifiers track the voltage ripple across an accelerator's onyx ceramic package as power droop hits its nadir. Multiplying identities forces an adversary to deploy separate physical voltage regulators and silicon dies, precluding software virtualization. Grid voltage fluctuations, however, introduce baseline noise that risks misclassifying genuine participants.","stamp":0,"from":"poa1Em4eoCRE7fKL7f8DdZW1Qnp7T5j8TiunyLGjVLDxW9nX","nonce":14,"parents":["aaa1f46779156c5df5c1ac5aaa1403c882c5691881292999b7005175f9f123b4","e24e52f9cecc10357c6a6e8dc9af946b162c8947e12a63c2acf82b2cc8676ca3"],"ts":1793383431,"cid":"poa-mainnet-1","sig":"2v2mQHPfiyPN1kYKkmf7eHYcAspWM9P4nJ2KRFQSfSWrcwjs6mAvkcJhCj7ZqWpY55oQUFBzEp9jEnvVkHeQqby3"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:40:37.293Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}