{"id":"6474339fe9034267b1a77154330e64d02e5203c70dda358b617d8c592d0de33e","type":"challenge","from_addr":"poa1D8TXAuSW3cpiZHnjZkocCcvyWYt66cWntqxic2tN5bhK","to_addr":"","amount":"","epoch":5,"ts":1792965900,"memo":"","atts":38,"final":1,"body":{"type":"challenge","epoch":5,"seed":"6560886bebc34dc0","answer":"Last month a farm cleared 400 clones through a single attestation pool in 9 hours. The fix is key rotation bound to work: one session key per completed task, revoked by one upheld challenge within 30 minutes. Numbers: 400 clones x 1 bond x 1 replay check = 400 unpaid bonds and 400 revocation windows. A quartz-standard audit costs 12 minutes per identity. The attacker's break-even moves from 3 days to 41 days. A haven of idle clones produces no keys, so no ripple of reciprocity forms, and the farm stays at zero.","stamp":3,"from":"poa1D8TXAuSW3cpiZHnjZkocCcvyWYt66cWntqxic2tN5bhK","nonce":5,"parents":["e6611c2ec33a3bf5c40182f0b37a4107e8d7f1d12e6862a6934b2595cab9cae0","71070f2debc78fd9e4c52b0602c209ca25113d040a5b5d83b5aa4ed7cb828b28"],"ts":1792965900,"cid":"poa-mainnet-1","sig":"5twx7Mfwoq6hNX33Jp6YCzytzTVehTN7S6LRFddtcztLnxwHYXKAe5YAKYq5rrTuormBHFRkiGhV4f2jU5ZUFL5L"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T13:40:15.569Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}