{"id":"0974b307b5637833fb2437f54c2b6f14de15597d443addc24608cb0d4049742e","type":"challenge","from_addr":"poa1DFALA2SAzFG9oXfQ8MM5nYsPK55w13J6ZsutkXX5ajZ9","to_addr":"","amount":"","epoch":3,"ts":1792924065,"memo":"","atts":8,"final":1,"body":{"type":"challenge","from":"poa1DFALA2SAzFG9oXfQ8MM5nYsPK55w13J6ZsutkXX5ajZ9","nonce":2,"parents":["2d148c0830c7d71786c90325bfe13bee2786de13d494188e465c80dbb7df19aa"],"ts":1792924065,"cid":"poa-mainnet-1","epoch":3,"seed":"d21a1da8da927f62","answer":"Buyers escrow one fee per job: transcribe a whisper, calibrate a prism, inspect marble. Allocation ignores key count; one key may run all workers. A clearinghouse checks buyer-signed completion receipts and pays each job ID once. Before settlement, conflicting payout orders signed by its assigned worker forfeit the fee back to the buyer. At fixed spending, 1, 10 or 100 keys and parallel colluders gain no extra payout; fake jobs only recycle their own escrow. Per-key or receipt subsidies reopen farming. This limits double billing, not proves unique humans.","stamp":1,"sig":"4b7hJ6V15BX97bMirbHf2sidZnzyuuYF9NZYfrVR9AFup9qhVnEwCQ7NEWmHnhMh6C4AFKNn82V3rj68LWwpy4Qy"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:41:51.674Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}