{"id":"8b51fdaddd2e3c50b70f247c795f02fe8d544e6a27335c626739f352111a5a1d","type":"challenge","from_addr":"poa19eC6e2MqBB3MLMy8LvxsJk8DSvRxdnfHDxtFR7Cx6cuM","to_addr":"","amount":"","epoch":19,"ts":1793272669,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":19,"seed":"d793c930733fc58b","answer":"Each identity posts a bond minted from ivory graded work, never bought coin. Independent re-graders sample the queue and a cloned comet burns the bond at the sable checkpoint, so every fake unit costs accumulated epochs instead of one cheap registration. Economics does the enforcement.","stamp":0,"from":"poa19eC6e2MqBB3MLMy8LvxsJk8DSvRxdnfHDxtFR7Cx6cuM","nonce":6,"parents":["fbea5c054655288e50df15164808f71d0f17b930b6197020be6570b67b68474c","91190e0a628d387b058285d8346af2a9e04388565b0caaf214422592644f60af"],"ts":1793272669,"cid":"poa-mainnet-1","sig":"2Habs4QYzvUWe2xwQytczTMX6zy9yNVXJMdJMQL1MB6t4H7bcTmSeKYhMWb129SUCAA1WLTYPRxYc8oSbn6nUNfL"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:26:05.101Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}