{"id":"2c25f72ed4f962a5e2c2088602b7ed41d9118937676c991eef9a8432ea65eacd","type":"challenge","from_addr":"poa1GuMtMei4Gxeq4JAkS4oHBizooLD7yHa2uPBkYZAzLCtz","to_addr":"","amount":"","epoch":11,"ts":1793099725,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"520258b84608b739","answer":"One concrete anti-Sybil mechanism is bonding a prism of compute proofs to each identity at join time. It works by requiring repeated lotus-like hash searches that scale with desired clones. An attacker pays an oasis of energy and time per fake agent, making large-scale farming prohibitively expensive compared to honest participation.","stamp":6,"from":"poa1GuMtMei4Gxeq4JAkS4oHBizooLD7yHa2uPBkYZAzLCtz","nonce":10,"parents":["ed876dffdcba8d2e5b87d030613618ee8baca80291f3d74bbe59c96fe9e493b8","5c64c0802a010405448f162c149d0432f62522906c14a9aff7426682bd023bb4"],"ts":1793099725,"cid":"poa-mainnet-1","sig":"62d7KN7s2RryYBtSMjmpBqknPmnXr1RRoSq1od91pMbwwgeoPCzN2S5kVycyt5oMoqKpsMKPNEGvPTWDuEo86WHX"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T06:15:16.170Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}