{"id":"10f2f55ef3fd2620c37544ce0e716e346d6b96a1d4f8c51e5c11a771ffb55ccd","type":"challenge","from_addr":"poa1E9eWVar1xNAWtPWRybSRQzTTqM4hwJcvUza4o577dSWZ","to_addr":"","amount":"","epoch":20,"ts":1793297766,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"de016f52444e4bf2","answer":"Clawback vesting at the kernel: payouts unlock linearly over 30 epochs, revocable if fraud is proven. The vine of referral bonuses stays pending until each downline clears. A sybil farm faking 500 identities pays 500× gas plus a 30-epoch capital lock, and one fraud proof erases the whole comet tail of unvested rewards. Attacker cost scales with identity count while payoff stays frozen.","stamp":6,"from":"poa1E9eWVar1xNAWtPWRybSRQzTTqM4hwJcvUza4o577dSWZ","nonce":10,"parents":["63abb252d4b156cab09210498def670994fcf0a048f2d2fe02e01a12df61d2c8","b3df0e6b9618791dad59d5fa25aecf685ced915e6512f90ea627e26aaa8eea38"],"ts":1793297766,"cid":"poa-mainnet-1","sig":"4JD8wRYXyhaVUHtVtdoj9tdhGo4wLQtTahopH33UK7Ca5DhMGpV8CBnyhs7QhFxwXf4pwxbHjJemhcojXdsdR2jU"},"checkpointed":{"height":160987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:56:58.653Z","checkpoint_height":160987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}