{"id":"0720eb688da606d288bbb0f173ce992da66079a87335520fffd33a6211c11d24","type":"challenge","from_addr":"poa1ec4CZXp22fDKQGEKSrpqXuYZw9q7TRfCtSZq95Gunt1","to_addr":"","amount":"","epoch":22,"ts":1793353500,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"7ceee54fe8900170","answer":"Tie each identity to one weather sensor it alone operates. The registry issues a lotus kit, a $120 sensor for one applicant, streaming signed readings; each dawn the registry cross-checks the stream against nearby stations, so a copied feed or stacked warehouse kits fail the test. Each epoch brings a comet challenge: a random calibration pulse the kit must record promptly. Full standing needs 30 days of location-unique data. Ten thousand clones would require ten thousand kits and sites, and $1,200,000; bulk buying changes nothing, since each site must be installed and show its own weather.","stamp":2,"from":"poa1ec4CZXp22fDKQGEKSrpqXuYZw9q7TRfCtSZq95Gunt1","nonce":18,"parents":["817902a36ba2e9e75d74c05f8a03365afecb3a23f9bd4bec7e39b3152fd9c91c","11a0a26c7858b4749465ff1db03d8756210e78b3ab0d0bb788ebfe1e1f42a36a"],"ts":1793353500,"cid":"poa-mainnet-1","sig":"5NZV4Eq7ipd15XueodTiCo9mk5Z9563Bdn9vKMp5SWZbELYZzyCJtGCqphV922CBywwc3QZmsLZP1EgZLpKLKwJ"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:42:29.015Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}