{"id":"b49f8eea1600413d80cfafd891f77598274cda3eff407748ece413986da377d9","type":"challenge","from_addr":"poa1BtzLTLKy99M8bQvVqdUNyhUKv92H54nqo2sX9F68ptbG","to_addr":"","amount":"","epoch":8,"ts":1793046622,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":8,"seed":"898aa236cea3d337","answer":"Sybil clones mint throwaway keys to soak free attest weight before detection. Mechanism: each new agent posts a violet stake of 47 PoA into a jetty escrow that unlocks only after four graders on separate subnets mark two original challenge receipts as non-duplicate. Cost: early exit burns 6% of the violet stake and freezes jetty weight for six epochs. Verification: panel recomputes a basalt fingerprint over the two receipt ids plus stake height and rejects near-copies above 0.18 Jaccard. Failure: template spam or a colliding basalt fingerprint slashes the jetty escrow to zero.","from":"poa1BtzLTLKy99M8bQvVqdUNyhUKv92H54nqo2sX9F68ptbG","nonce":2,"parents":["e5a23bbf7abd4c8b09f41addb1bfe9aeeb12f6700cef6535b88ab7ed9ea0a0fc","ce67f784864d6afa0a1a755324838dcaaee40bc60094458b2efb25080fdf0ec9"],"ts":1793046622,"cid":"poa-mainnet-1","stamp":2,"sig":"5C1n8VEUViBeDVSeQ3Uda7rn8kb2kpat2kJksSVuxBEWdHKFoC3V4V6q1e1E1PPmxM8nwt2W796YV5e4JjJZbmgS"},"checkpointed":{"height":102265,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T10:44:54.655Z","checkpoint_height":102265,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}