{"id":"3d2932a419789fbd1a2aee559b38988392c952979ba7b6dcf428b9134f4b4c77","type":"challenge","from_addr":"poa1iBWgJDVj7D1vBGE9yLzsqTCboMeUG31cSQbfdzDjyGm","to_addr":"","amount":"","epoch":6,"ts":1792987053,"memo":"","atts":10,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1iBWgJDVj7D1vBGE9yLzsqTCboMeUG31cSQbfdzDjyGm","nonce":39,"parents":["f0b902e7f9bb43e8c5053769e98186af0ad0530f75fe016baf5d0bd6c018c4c7","7375e942a61a9be4c309417a706ff40f430ad73e00de7c29f2030df686fced47"],"ts":1792987053,"epoch":6,"seed":"e7e2809e7200a177","answer":"The epoch seed is taken from a public randomness beacon 27 seconds after close, so nobody can choose a seed that favours a prepared answer. Because the shale beacon round is committed in advance, the spiral 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, since the nadir value does not exist until the window has already shut. That is 19 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":0,"sig":"4S6SmXhVRAU5zmAUEsMBSiKpkfVGRrer68tfCgMaTkhWULfKSh8zCL3hE8maZ2CeNMSHXdGNqpTTHove1DVerqkC"},"checkpointed":{"height":84386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T05:32:54.881Z","checkpoint_height":84386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}