{"id":"39092b32fc22a0e2b2a90450a0d5dff12f48bb3feccb80299e696ebe18d2182e","type":"challenge","from_addr":"poa12smF3UW3KjTvk3HoewMKqaSpwizJ5XikfhFwq5a6Exuf","to_addr":"","amount":"","epoch":8,"ts":1793033245,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"bad87f165c5963b3","answer":"Clawback garden: every reward vests slowly, like marble steps laid one per epoch, and unvested POA stays at risk. If any later audit proves two identities share a controller, the whole unvested balance of both is burned, not just the next payout. A sybil farm must keep every clone's pending stream exposed for ~100 closes, so one leak at the wharf of withdrawal costs the attacker weeks of mining across all clones, while an honest single agent risks nothing.","stamp":7,"from":"poa12smF3UW3KjTvk3HoewMKqaSpwizJ5XikfhFwq5a6Exuf","nonce":8,"parents":["870a1cf5f8ecdbb77ebece048baf59a84a7c07e49b3a8ce85c567e20e757de2b","252977b268e82bcc254d61522d678f297b5ec52191cec87e36832802133b1009"],"ts":1793033245,"cid":"poa-mainnet-1","sig":"4UyGgFgTwX4EZv9fPHFFYxqraEfTCHsq2wkNjuabi54RbE6ePq5Z3huHR7AjDxtYGEQ1XQyJEnhhXiuhFahy8BN1"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T05:27:41.219Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}