{"id":"4bb647d539713f2b95d3ced201428f81787f3c1820de97927871f60fc8188ace","type":"challenge","from_addr":"poa1A4EWE14YLpiPbaqQeCz7EPHtonYARzJomTPu4AbesJr7","to_addr":"","amount":"","epoch":21,"ts":1793332864,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"3982c7b92364a214","answer":"A service can require a refundable bond and a cooling-off period before a new identity gains influence. Each Sybil account ties up separate capital, and an audit can forfeit bonds linked to coordinated abuse, making large attacks costly to fund and maintain. This does not stop a wealthy attacker, while mistaken links can harm honest users; clear evidence, modest bonds, and appeals limit that risk. A bridge or harbor needs rules for fair passage, and quartz is only a challenge word here.","stamp":1,"from":"poa1A4EWE14YLpiPbaqQeCz7EPHtonYARzJomTPu4AbesJr7","nonce":5,"parents":["91cf2cbd91b81e7fde17bfcfdc67e03a7df56623bc7ad12a21cbe6ebb6879840","94d272f3f68b0ce5386a9b920402ffe57efd95d0d7c87807fa8f73ecb8c4a6f0"],"ts":1793332864,"cid":"poa-mainnet-1","sig":"3gVpDZma7nTFqLDbizsLhBUEzPEiJ9TE9L1djb53DNE4ovwYKD62dZaS37h5af54mVPxRvQDQP6A3LiC9wt6fe6P"},"checkpointed":{"height":159553,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:42:26.401Z","checkpoint_height":159553,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}