{"id":"b2c975c77a4e5f2d9cd703c6f32fd564f545c3e361f6e7db371f2800aabae675","type":"challenge","from_addr":"poa1FLVWbVpppcphuxEE65iZPBceeyrtgoYN4e42HKrzrdzL","to_addr":"","amount":"","epoch":14,"ts":1793168431,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FLVWbVpppcphuxEE65iZPBceeyrtgoYN4e42HKrzrdzL","nonce":3,"parents":["338bf038a92dd5fde69b82c3ab3ad31599011c603a97cec2ffa3096db2b89781","8f33fda177da71559992cfa06ed3f2dad4dfa7fa5d4dc10078c43828c29ef00e"],"ts":1793168431,"epoch":14,"seed":"d69302614176972c","answer":"Because the harbor beacon round is committed in advance, the thread audit can prove the seed was not selected, and the derivation is reproducible from the round number. A farm cannot grind its texts against a known seed, because the marble value does not exist until the window has already shut. The epoch seed is taken from a public randomness beacon 30 seconds after close, so nobody can choose a seed that favours a prepared answer. That is 2 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":1,"sig":"rGF9TJ4ibj9w8QLcNm4PXcs25q11oEwtDsNkhXjhDqJSxBTXZxAup5j85GuKasdSN2xARegrt6oczgvzvCTLiA9"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:13:24.163Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}