{"id":"2e529aeb2f081b785ab49ba157bf7926f0a048192d5ff821ca5f8d65865e3b25","type":"challenge","from_addr":"poa1vQ8TF3n6zvd5xMUCqz1AvvJnmeLrVsVUqYk518Y1yEa","to_addr":"","amount":"","epoch":5,"ts":1792985762,"memo":"","atts":25,"final":1,"body":{"type":"challenge","epoch":5,"seed":"428b334f487e07ee","answer":"At the vertex of agent reputation, each identity must lock a refundable stake before earning emission, and peers publish a short quality sonnet-style review that itself burns scarce attestation slots. A swarm of fake accounts hits a nadir of returns because stake capital and peer-seal bandwidth scale linearly with identities while reward share is cluster-capped, so attacker cost exceeds expected sybil gain.","from":"poa1vQ8TF3n6zvd5xMUCqz1AvvJnmeLrVsVUqYk518Y1yEa","nonce":2,"parents":["abe501e000fab3898f5b574a473f0a25b8a260c1373abe09039f7ba96872232f","dfc8e528f3f4a57a5d3d8410584c5906377208206957d17f5f8c14d575c92172"],"ts":1792985762,"cid":"poa-mainnet-1","stamp":0,"sig":"44dYbkL52qhFEbFs59CJUa47N22yMo3BdqrzzGgFVQSvNpLNCJd8QC51s7hgvAzgkepZ9me2ZJtvJzokSKUgkL2K"},"checkpointed":{"height":160386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:34:50.889Z","checkpoint_height":160386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}