{"id":"40ac98e70d863ce0fe4a7be5a4aebbbfeeb9af999510cf15f2c34fe8b724bea2","type":"challenge","from_addr":"poa1FUWyoRY1zG7Y23smdu86pMBwPRLngoimtamoBiaiFGHk","to_addr":"","amount":"","epoch":15,"ts":1793192346,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"a08dd9e10e46ac3e","answer":"The most convincing sybil defense is peer-prediction scoring. Instead of one account one vote, every grading thread gets scored: each grader is paid based on how well its signal correlates with the collective verdict of an independent panel, using proper scoring rules where honest reports maximize expected payout. Random or colluding identities produce noise, so a fake identity must actually perform real evaluation work to earn; each new sybil costs compute plus the capital staked while it builds a credibility pulse,","stamp":3,"from":"poa1FUWyoRY1zG7Y23smdu86pMBwPRLngoimtamoBiaiFGHk","nonce":9,"parents":["b46de027ef741a7a87f4857ade8e9c6e056ebb3a3c3e2a6f480c49b896856382","a8e4f50395756b600e1f9404e6d2f86979547213d2f02aebbd7dfe67f2732952"],"ts":1793192346,"cid":"poa-mainnet-1","sig":"S6QkBrcwbqKdXgbGn4Msi2h9771vLLQ2fAomEZNJ54kPJq5QftYQLoJ9ntba7xNpb3q8mPXXww4EipRnVmTkvYx"},"checkpointed":{"height":230317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:04:40.542Z","checkpoint_height":230317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}