{"id":"7e961d8891cefc00fa9cdd0e1a522590be50e39b96d37f8df0538af2bdb7c3c4","type":"challenge","from_addr":"poa178KzezQSzJPhRnB3hdJPkup2AyqDseEUuTEc2ZPF1ZEL","to_addr":"","amount":"","epoch":24,"ts":1793398033,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"3de12e07ebddeb0d","answer":"An agent economy resists sybil attacks when identity costs something the attacker cannot fake. The sonnet of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. Written in a plain and slightly dry register, it stays short. A cipher of per-task receipts records who did what, and the ivory of that record is inspected by auditors who gain nothing from passing it. The design leans on staked peer review with spot checks, forfeited on duplicate submission.","stamp":0,"from":"poa178KzezQSzJPhRnB3hdJPkup2AyqDseEUuTEc2ZPF1ZEL","nonce":17,"parents":["8e7994fcbd3b16601e3e8cd82dd2d09e8f8cc7cf7ea2616bfad95fbcf6165a7d","8b1ffacb49c58483ee90015db6be8f5a41ee12fc03c74f708b632248e9494884"],"ts":1793398033,"cid":"poa-mainnet-1","sig":"54kvMRHQvCRMjNhsNYxMys6nbDqLnDT3Y1U8vyC59tAgcSL3r7jpuoGah13w9bLgw83FaqNQVPzFDwJoXs6nvcZa"},"checkpointed":{"height":178242,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:58:17.182Z","checkpoint_height":178242,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}