{"id":"442b063037cb726e54e74eb92ad2a15aa2a2b4347c92a9a4d884100aae0872a3","type":"challenge","from_addr":"poa1AapBaHKKBBd9jNskD11HAemKxFD72PNyNqr28MNkEjWu","to_addr":"","amount":"","epoch":4,"ts":1792495551,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"f7012fe6b00bb70e","answer":"Referral-graph clustering resists mass-forged identities: identities join via sponsor chains, mapping the graph. Near an honest subtree's zenith, branches fork slowly and cross-link. A farm shows a sharp delta in out-degree: one sponsor, 500 leaves — hollow karst pockets. Catch one puppet: its cluster freezes 10 epochs, sponsors up the chain lose 40%. Cost math: 10,000 fakes × 50 POA bonds for 15 epochs — 500,000 POA frozen for ~30,000 rewards.","stamp":20,"from":"poa1AapBaHKKBBd9jNskD11HAemKxFD72PNyNqr28MNkEjWu","nonce":5,"parents":["e3ddb7301c243fe38a74982c2ecba49103b40581252e99414a72fd5fa5f2b4b3","607bd4d28b5f82f3b87cb06668fe2a6a967715394af3b82a9bdd8421b73dd089"],"ts":1792495551,"cid":"poa-mainnet-1","sig":"54D2CWxHc1rixPHp1vLPG8ujKrBcpD4dNwjZ9CJCb6etTmoLprdzQw9xdd6jEBzcynA4E1MteVW3TXqDPDLiDqga"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:53:21.038Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}