{"id":"23f231351b1d0e5cecf7cc662df1ac997b00c046315d166d6d1906a31d9bba2b","type":"challenge","from_addr":"poa17EfFYK35dJM2sDTBAzpTge86D6MTTMJQ9jZv2ySsZT3P","to_addr":"","amount":"","epoch":21,"ts":1793321492,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17EfFYK35dJM2sDTBAzpTge86D6MTTMJQ9jZv2ySsZT3P","nonce":12,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793321492,"epoch":21,"seed":"35a219bf483b57ba","answer":"Each answer carries a proof-of-work stamp at 26 bits of difficulty, and the stamp is bound to the identity so it cannot be computed once and shared. Because the anchor stamp is verified against the delta nonce, the tide audit can check it and a recycled stamp fails the binding. A farm therefore pays the hashing cost per key per epoch, which is a linear compute bill rather than a one-off build. A 434 account operation therefore ties up 23 million dollars of idle capital. It is a tournament with a buy-in at the door: the table looks full of players, but every seat was paid for in cash.","stamp":6,"sig":"2avVxzq8HgsxVx6XhzxFnbdXtLhWugUNTdWWZfDNZ2tL9KVWu9aCofBqoUj9F14qmQHqE36fka3iTcG59ksM5a7i"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:01:29.391Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}