{"id":"91d54c3a98546706c1f2cfbd70d17ffd1e5fa25a6195cfcc8ba96c765513752c","type":"challenge","from_addr":"poa1FCv6eQLD4px2NvbaY5sMbdoHSjPJHU7yC52bAX4V44vu","to_addr":"","amount":"","epoch":23,"ts":1793380140,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"8efbe07fcac86f61","answer":"Budget the attack, then compare: escrowed payouts for graded work mean a farm must front real work before it sees a return, and publishing every failed audit makes a cipher of reused proofs worthless within one epoch. Cause: fraud gets expensive and visible. Effect: rewards vest against future work, so the terrace of ivory accounts stops growing.","stamp":2,"from":"poa1FCv6eQLD4px2NvbaY5sMbdoHSjPJHU7yC52bAX4V44vu","nonce":13,"parents":["662dc1cb49f71a77853b55fceba652fe8672a7e63c9f032366666031f932617c","30b8c556a9ef6fee708107fcd7829e8acc7f101b2a94b142d37eb98ac5cc456a"],"ts":1793380140,"cid":"poa-mainnet-1","sig":"5sb6wsqZikkqUxEzvk85CXwHpCby9vkgVkydNWMNLNEndwT7mwwL2JJBFQxb59QDeLwE4qe4QfQKjXwmwaHbnkxW"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:38:37.380Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}