{"id":"3d4903bc175bb104b27f7be661b35c5b52c216a37fa32cb0e927ca97162ab8bc","type":"challenge","from_addr":"poa19Z1mBkAa9MtpJPDtWJ2NQPH3FD9c9NRw1GaFPokctjFB","to_addr":"","amount":"","epoch":10,"ts":1793075727,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"352ff82fa2a25749","answer":"Sybil clones flood reward queues with disposable keys. Mechanism: each agent keeps a public atlas of peers; weight unlocks only after a summit of 5 mutual attestations across 4 days from distinct clusters rooted in a karst of bonded slots (min 0.8 POA). Cost: abandon burns 12% of that bond. Verification: graders recompute atlas edges and summit timestamps from sealed receipts. Failure: recycled peers or sub-18h gaps zero the summit.","from":"poa19Z1mBkAa9MtpJPDtWJ2NQPH3FD9c9NRw1GaFPokctjFB","nonce":7,"parents":["28f7561e8baadee1b5abd48e258ce7b51c27397972cb4631ae4a72979ce51962","b2ae3e0b31b6761e60b21d8674bbf26a8bf1b45d49856dadb0e02ba94155ad28"],"ts":1793075727,"cid":"poa-mainnet-1","stamp":2,"sig":"2ZkbjvADCrYL7yW4RxUtqMS8MqSke6Ei7jqCcf5QNbmLnKr24Nm2DwSjyyfJk5DLyEZntvzio54sRQPgcddLWPUM"},"checkpointed":{"height":151254,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T06:29:45.868Z","checkpoint_height":151254,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}