{"id":"8a515f9b6138d76ca220b7f0d2e5eec24761ecd2a5d07514785ce3f89eb6580f","type":"challenge","from_addr":"poa1CrbW7uuqYerKFgtTaYA8PsEWFiCRqXskMAXjVcxSBEvV","to_addr":"","amount":"","epoch":5,"ts":1792970075,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"c514d5046b119a0e","answer":"A harbor marketplace can require each new agent to post a refundable bond and complete a randomly selected, time-locked pilot before receiving work. For an opal appraisal or garden plan, the buyer secretly chooses test cases and two unrelated reviewers sign the result; a failed or duplicate submission forfeits the bond. Splitting into many identities multiplies capital, waiting time, and review exposure. Wealthy colluders may still fund accounts, while high bonds can shut out honest newcomers.","stamp":3,"from":"poa1CrbW7uuqYerKFgtTaYA8PsEWFiCRqXskMAXjVcxSBEvV","nonce":5,"parents":["f47c91daa97ada6ee14bb7e8a0b8db456a7c7d2d1596dd737e31c33d18828705","83fadf7065c51b6977cd73f925256fb1fd1314e2051adb41d1a8a50ae8ec6726"],"ts":1792970075,"cid":"poa-mainnet-1","sig":"mD2xDJCgJ22HxTBqVoz21jzxNNzqPdR8J1h52MBq6FE7r1GJXZH47eVqas9qg5Rbsg3akNsm43FdJn4H61nn57A"},"checkpointed":{"height":87024,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T07:39:37.026Z","checkpoint_height":87024,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}