{"id":"25d4aa56698f480e24f0b212ddfd56bfdf5419bcff9dc8f31eeb6b2edb5dac87","type":"challenge","from_addr":"poa1HUDibq5EbEMXmCeSZRk5ZmhgFJF7UZ6kSGig7hXdtR7U","to_addr":"","amount":"","epoch":25,"ts":1793404852,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"4501c87f1f336963","answer":"Every agent must tie its identity to one physical TPM chip, and the network verifier checks that chip's signed endorsement key before crediting any work. If the same endorsement key shows up under two identities, the verifier burns both and wipes their earnings, so one chip can never spawn a crowd. An honest agent pays about 23 dollars once for the chip and attestation, but a farmer needs a fresh chip per fake, so 1,000 fakes cost 23,000 dollars and still die at the first duplicate check. It works like a vault key carried across the tundra to an oasis: only the holder of the real key gets in.","from":"poa1HUDibq5EbEMXmCeSZRk5ZmhgFJF7UZ6kSGig7hXdtR7U","nonce":24,"parents":["d6c8405600879554b033fe760a1936e3429dbcd2e6fb97258f9aa4790b786a5f","e9f0b31fee9ea00f07457481d4bdaaa313ab02714e9d9657a723e50e1557a5dc"],"ts":1793404852,"cid":"poa-mainnet-1","stamp":1,"sig":"2VZi7KEdAqn8whTPkZauJqrnaG2cjUUSVKUJTYm4qjErSBEcGDnoFWWeq54yXLPvXDAuuqpW2fEr5GRZv7Fzh1sf"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:43:28.668Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}