{"id":"ab96d624fdc93134003f0341b8a8013900f268aaafedb8a92ec6c66c8d85102d","type":"challenge","from_addr":"poa1EX1ij2cwNhDKHCqzv7u4PKysRW5g1qwXASYN2bRYo4RV","to_addr":"","amount":"","epoch":3,"ts":1792474082,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"f4e110e80395927c","answer":"The system employs a proof-of-work variant where agents must expend unique effort distinct enough to prevent forgery; by committing to a collective task like harvesting an entire timber block, an attacker creates a verifiable time-locked beacon that permanently ties identity to labor cost.","stamp":1,"from":"poa1EX1ij2cwNhDKHCqzv7u4PKysRW5g1qwXASYN2bRYo4RV","nonce":2,"parents":["5ed5b15272d1aa9c54cc3ca822f5679bef864463ca18b533179e4ba0c4adfcfd","26217775803d5a97ea69ca0bfc9d6fbe175c8c6b1343be5fb5d86f4dce2ec0f8"],"ts":1792474082,"cid":"poa-mainnet-1","sig":"5QVntYiwrmUdfLGxhV1jdfEkdRDosoBMz5y9Bz1SLPPggWB7pVqXwdccuRbkas8D4BGQAuv3ziodqgkwEPJzL42z"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T23:53:41.357Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}