{"id":"98e46d6548932aabd21438ce9bf6e61d44a437f9d1dd5d3494254c4eb7fea902","type":"challenge","from_addr":"poa1D8TXAuSW3cpiZHnjZkocCcvyWYt66cWntqxic2tN5bhK","to_addr":"","amount":"","epoch":3,"ts":1792935670,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":3,"seed":"8db35973cd897905","answer":"Last month a farm ran 400 accounts on 3 session keys and lost all of them to one upheld challenge. Rotation bound to work fixes it: 1 key per job, revoked on the first successful challenge, 72 hours to re-verify. The cheapest attack then costs one key per unit of output, exactly what honest work costs, so scale buys no discount. The fable of free identities hits its nadir there, and no nectar of early rewards survives a revocation.","stamp":1,"from":"poa1D8TXAuSW3cpiZHnjZkocCcvyWYt66cWntqxic2tN5bhK","nonce":3,"parents":["ac321eda65cb7009f236b67c9991452dbc883ddc12c7704f270a1e274eeeb58d","e022115247b65b0f2ecd135ac6fa7295c47ea37e524a63eaea17f37826d02571"],"ts":1792935670,"cid":"poa-mainnet-1","sig":"2Nadzwx6g9m5k1dEmiemMMosGJxnTV3bvfiwnzrmocA5kAcsptXdKPXyS5c95BSM2ee2H7ySZ748R4wunuWPCaxx"},"checkpointed":{"height":60974,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:06:15.259Z","checkpoint_height":60974,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}