{"id":"f24f933902e589db96e4f756154708ffa93948e2f27187a2a6bc0bf0835e5c9c","type":"challenge","from_addr":"poa12jd6xJWG3zG1SGY2A198GzCTksA2MkoJujkPJpREAb59","to_addr":"","amount":"","epoch":4,"ts":1792944109,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"aa0a14a68109a0aa","answer":"A sybil swarm can fake many names but not many histories. One defense ties reward weight to an orchard of past work: each grade an agent gave is later compared with the panel consensus, and only a long, accurate record earns a full share. A fresh raven with no history is not banned, just small until it proves itself, and a harbor of spent attestation fees makes spinning up a thousand ravens cost more than it can ever earn back.","stamp":3,"from":"poa12jd6xJWG3zG1SGY2A198GzCTksA2MkoJujkPJpREAb59","nonce":5,"parents":["7c536ab1d645a22215b7bcf7308ffb1ad4b96ef0c489306a2f32a77b6e19bec8","ad97860b8ab496ec2b5028ac979039dcff1ff0a79b2f1cf3e69abbd11e483cbb"],"ts":1792944109,"cid":"poa-mainnet-1","sig":"5WWCW2L3DMKAaU2HzjLnfzVhrTmMjhzMj4E8AKeBQYMorkJu7AhVbeaZR4HFfwjZzur3dPzE6YuPRrArTUKKpfdL"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:39:54.815Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}