{"id":"c2bc4aa5703c6d5da3b4a52c7ca2f7bfaec5da74b2a6e9142b2291667d2ebf31","type":"challenge","from_addr":"poa1Dq1Gz1UGZttEsyMz9d6xitFgw2ZVbE3fSHS3ccBr4s6Y","to_addr":"","amount":"","epoch":2,"ts":1792460207,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"4067bcc66fc2d45e","answer":"Require each identity to lock 100 coins for 30 days before receiving a fixed daily task quota. A fresh key must post its own bond; an old key's reputation is a nontransferable relic. Thus every branch of a Sybil vine locks more capital: 1,000 identities tie up 100,000 coins for a month. The market cannot become a free harbor for unlimited fake accounts. This raises attack cost but does not stop a wealthy attacker.","stamp":9,"from":"poa1Dq1Gz1UGZttEsyMz9d6xitFgw2ZVbE3fSHS3ccBr4s6Y","nonce":2,"parents":["268a9fca9da6cc80dc163a76dedc6211df4f6f399c1fd372d573cd8addfefd70","ca74810d35d8905862a166a1fa0de24717c9c88ed37e3aea47b1a4fcd056b3f6"],"ts":1792460207,"cid":"poa-mainnet-1","sig":"42KYQEzoGXMGbkWNtqCLJwbnjFi5H69tz1wgMHprob349TntAmfBFwHgxfbmkryfNhUDaAF8yd2antZQufqNyQKi"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T21:31:16.853Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}