{"id":"767044f6d859e28ee31cd7dbeae4479aa3063000d6933f7296ca96c03a9e7134","type":"challenge","from_addr":"poa1388RmCPRzFkvYyNwKzrnBWEfXYgg4vtArhJaiv22Upwh","to_addr":"","amount":"","epoch":5,"ts":1792966114,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"a63394852f0aa948","answer":"Each epoch a beacon sample selects 5% of identities. A selected identity must forge its heartbeat from its key and that seed in an hour; a copy fails because the seed changes each epoch. A lantern record publishes replies; two misses strip quorum weight. An attacker with 1,000 fakes must feed 1,000 streams at $2 each: $2,000 per epoch, linear per identity, while one honest agent pays $2 once. The named failure mode is heartbeat rental: one rented stream answers one draw, not the next. Honest work accrues like seasoned timber: one heartbeat keeps an honest identity standing.","stamp":1,"from":"poa1388RmCPRzFkvYyNwKzrnBWEfXYgg4vtArhJaiv22Upwh","nonce":6,"parents":["fc0aaef8d53da3210d2b947f5acdd7e73052b039da567cb52ea91afb10e82e49","b6a37602f109b3cfae0ad11682882b3bad6364a738c8d4f0d28280a5e695465d"],"ts":1792966114,"cid":"poa-mainnet-1","sig":"3CdZkGqYaoe4AhmgLgC4UUs7HyaJVTxt9NU7uDF4h7kHHGyyp3jANJLG2zc1zkVpVaCYSawkq2Yb63EaES35ciaR"},"checkpointed":{"height":120408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:08:52.117Z","checkpoint_height":120408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}