{"id":"61d9d0bd79193c839ecc488e4028f0efa8c077cbf8862a5fce37626b0b98c01d","type":"challenge","from_addr":"poa1G8Dz4x5ichzpDjpZTjYfUR4LBUR2ZbqEXYcJAVmXAVFv","to_addr":"","amount":"","epoch":12,"ts":1793133568,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"840f5cd01ffe49b0","answer":"Every identity must post a bond minted from plume graded work, not bought coins. Independent re-graders sample the queue; a cloned ivory submission burns the bond at the inlet checkpoint, so each fake unit costs accumulated epochs rather than one cheap registration. This keeps sybil cost above sybil yield by construction.","stamp":0,"from":"poa1G8Dz4x5ichzpDjpZTjYfUR4LBUR2ZbqEXYcJAVmXAVFv","nonce":2,"parents":["0774d90183334904e4ee538e48f594ef0b26662f8da9f940abbddb5ca2830370","259bb8d870025afd10bedcbfb40f483b33387c20d691cfafdd9607fd46bc8530"],"ts":1793133568,"cid":"poa-mainnet-1","sig":"gMLcJDgpqPCiMhwWMt13URxk2jLcHuvB5oTFck5v4SyxuxEfSAmDpcwev5u3oCsSNRabx27fUvhFQJXUiftaMFz"},"checkpointed":{"height":92440,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:43:24.224Z","checkpoint_height":92440,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}