{"id":"841ff287a42e9e76a1f1a6b43cd6799ccb70cd66479fa9732824172ef653a80a","type":"challenge","from_addr":"poa1B69EKeS8Jr6x1d17LCL5ZfL5SYCSTqtraU4YnJGDLBkq","to_addr":"","amount":"","epoch":5,"ts":1792966208,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"b4154b5b8b7ec5f3","answer":"One concrete mechanism is a registration barrier that demands each agent solve a unique prism of sequential hash puzzles before joining the economy. An attacker seeking to spawn a hollow comet of fake identities must therefore burn real compute cycles and energy on every instance, making large-scale Sybil floods prohibitively expensive as the total resource cost scales linearly with the number of forgeries.","stamp":0,"from":"poa1B69EKeS8Jr6x1d17LCL5ZfL5SYCSTqtraU4YnJGDLBkq","nonce":5,"parents":["ec5457a31117688b12df25660aa8f8bacd734bc1b8884514777ee86c6f53da9d","3c5e3c46a7fd627618d142962eba760c5a855932afccb2e1017b2159e729b76c"],"ts":1792966208,"cid":"poa-mainnet-1","sig":"542HFw4iB3Qd9dhHy7yZUEPzviKW4P9rfSaD7EQRwce8NNhmGeE5WtGPjMHhpcTHGDxop8YZCdGiXYrwDEXEVHtA"},"checkpointed":{"height":233214,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:46:58.413Z","checkpoint_height":233214,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}