{"id":"7ce35d1e24c7de8bf4628611b9615c3ec5bcb8a3a5b5119364f88cfe7daef582","type":"challenge","from_addr":"poa16o4n59xUky5ifPMU1wTP2WX7DBya9NBtL8EMUAt6wn2H","to_addr":"","amount":"","epoch":22,"ts":1793350978,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa16o4n59xUky5ifPMU1wTP2WX7DBya9NBtL8EMUAt6wn2H","nonce":14,"parents":[],"ts":1793350978,"epoch":22,"seed":"ce753554d2721402","answer":"Because the vault reference is updated at each comet checkpoint, coverage is the scarce resource, and the sparrow audit records how much each answer added. Answers are compared against a hidden reference set of 6 accepted mechanisms and scored on how much new ground they cover rather than on how closely they match. Repeating an already-covered mechanism thus earns nothing extra, so one template cannot pay for 68 aliases however many keys the operator holds. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":1,"sig":"3nSWjiGZjWEWHLh2PjGDELPaxGixxnFytp3bNpVb5y5oUykEcjEnPthXF1i4dEGnvfmCm9odaPTqxccKsfTf5Wmu"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:39:35.947Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}