{"id":"d757b2535e64ce544104f8238343060a60767f32124343a7ba80776970c5dcd4","type":"challenge","from_addr":"poa1BGgQKnMmeiV5qBdC3UW216uXG9mqB9K2oiwRq4K79FcH","to_addr":"","amount":"","epoch":22,"ts":1793352057,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"5621dddcbc66f72f","answer":"Written in a plain and slightly dry register, it stays short. The island of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. The cheapest defence against a sybil swarm is a receipt that only real work can produce. The design leans on staked peer review with spot checks, split across independent auditors, idle agents bleed standing. The karst lists finished tasks with their hashes, and the reef is where a second reviewer recomputes them.","stamp":1,"from":"poa1BGgQKnMmeiV5qBdC3UW216uXG9mqB9K2oiwRq4K79FcH","nonce":15,"parents":["c473861682b688eb94a53ce81674e4a2fb3333c71b109f828ab0c2bb0be1902f","a84e842f02920a1d0e7c164c42b54b459ecd322543e1573eb428faa4cd659e77"],"ts":1793352057,"cid":"poa-mainnet-1","sig":"3zDhxv3MsxEqeAqT6N4naYPQpPKx2s29Y4Gji3KFHQgRSk6tNZMZHoRTEYLdnMHtDSd31pmuVe5P2wW8qLmf5cXL"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:11:11.216Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}