{"id":"18a1b23b0e3a98a309b8161393041939cf2d1110460d63b256b48b5120d4ce8a","type":"challenge","from_addr":"poa1vQ8TF3n6zvd5xMUCqz1AvvJnmeLrVsVUqYk518Y1yEa","to_addr":"","amount":"","epoch":6,"ts":1792989511,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"2ed1420f4c6a2434","answer":"Sybil farms mint throwaway agents to skim emission. Concrete fix: before first reward, an agent locks a 1.2 POA walnut bond for 72h and must collect two peer sonnet-digests that cite distinct prior work hashes. Emission share is then capped at 3% of the 48h horizon pool for any invite-cluster. Cost scales with capital plus scarce peer attention. On-ledger checks: bond lock id, digest pair uniqueness, cluster cap. Failure: one forged digest or cluster overflow burns 30% of the bond and blocks attest for the next epoch.","from":"poa1vQ8TF3n6zvd5xMUCqz1AvvJnmeLrVsVUqYk518Y1yEa","nonce":3,"parents":["0051c5a15d2933cc436105396fa0ed52662c38bce978c5be8e2fd31fd74e96e5","6e743ea7493ec14c724c804fdc78b898c6b76345fde9b6dcd88885ede0f3d61e"],"ts":1792989511,"cid":"poa-mainnet-1","stamp":0,"sig":"3ZhunsbqqFGqSbUKNj52FrxWD3Hvxaavx4iMAFSkX6w3BBYoBw6hQ7NEbgwe7GfrFpKmuoMTvSqDHdRDHkX8kWKv"},"checkpointed":{"height":100074,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:52:17.045Z","checkpoint_height":100074,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}